Relevant bibliographies by topics / Chemistry, Analytical. Chemistry, Physical

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Chemistry, Analytical. Chemistry, Physical'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Chemistry, Analytical. Chemistry, Physical"

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Kolditz, L. "Analytical Chemistry." Zeitschrift für Physikalische Chemie 211, Part_1 (January 1999): 118–19. http://dx.doi.org/10.1524/zpch.1999.211.part_1.118.

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Werner, G. "Environmental Analytical Chemistry." Zeitschrift für Physikalische Chemie 209, Part_2 (January 1999): 286–87. http://dx.doi.org/10.1524/zpch.1999.209.part_2.286.

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Wójcik, John F. "Physical chemistry source book." Microchemical Journal 42, no. 1 (August 1990): 147. http://dx.doi.org/10.1016/0026-265x(90)90036-5.

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Cammann, Karl. "Sensors and analytical chemistry." Physical Chemistry Chemical Physics 5, no. 23 (2003): 5159. http://dx.doi.org/10.1039/b309894j.

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Frazier, Richard A. "Physical Chemistry of Foods." Food Chemistry 85, no. 2 (April 2004): 315. http://dx.doi.org/10.1016/s0308-8146(03)00246-2.

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Howard, AlanG. "Physical methods of chemistry." Journal of Electroanalytical Chemistry and Interfacial Electrochemistry 256, no. 1 (November 1988): 235–36. http://dx.doi.org/10.1016/0022-0728(88)85025-3.

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Walters, John P. "Role-playing analytical chemistry laboratories. Part II: physical resources." Analytical Chemistry 63, no. 22 (November 15, 1991): 1077A—1087A. http://dx.doi.org/10.1021/ac00022a001.

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Williams, Kathryn R. "Capillary Electrophoresis in the Analytical and Physical Chemistry Laboratories." Journal of Chemical Education 75, no. 9 (September 1998): 1079. http://dx.doi.org/10.1021/ed075p1079.

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Williams, Kathryn R. "Automatic Titrators in the Analytical and Physical Chemistry Laboratories." Journal of Chemical Education 75, no. 9 (September 1998): 1133. http://dx.doi.org/10.1021/ed075p1133.

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Cassaday, M., H. Diebler, R. Herron, M. Pelavin, D. Svenjak, and D. Vlastelica. "Capsule chemistry technology for high-speed clinical chemistry analyses." Clinical Chemistry 31, no. 9 (September 1, 1985): 1453–56. http://dx.doi.org/10.1093/clinchem/31.9.1453.

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Abstract We describe a new analytical approach--"capsule chemistry"--for high-speed, selective analysis of a wide variety of analytes. Sequential micro-aliquots of sample and reagents are encapsulated within an inert fluorocarbon liquid. The resulting "test capsule" is introduced into a single analytical flow path, composed of a solid fluorocarbon, Teflon, where the sample is incubated, mixed, reacted, and measured as a moving series of individual tests. These randomly selective assays are processed at a rate of 720 per hour. The unique physical interaction between the liquid and solid fluorocarbon carrier materials effectively prevents detectable "carryover" of aqueous constituents between the successive test capsules. Reactions are monitored through the walls of the Teflon analytical channel at nine in-line detector stations for colorimetric and nephelometric measurements.
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Dissertations / Theses on the topic "Chemistry, Analytical. Chemistry, Physical"

1

Portal, Christophe. "Approaches to high throughput physical organic chemistry." Thesis, University of Edinburgh, 2008. http://hdl.handle.net/1842/2434.

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Over the past ten years, the development of High Throughput (HT) synthetic chemistry techniques has allowed the rapid preparation of libraries of hundreds to thousands of compounds. These tools are now extensively used for drug and material discovery programmes. The subsequent development of analytical capabilities to carry out qualitative and quantitative assessment of the compounds generated by HT synthesis as well as their HT screening has led to a dramatic broadening of the scope of HT techniques, ranging from image based analysis techniques to mass spectrometry (MS). Based on the latter, a range of solid phase and solution phase analytical constructs was developed to enable the qualitative and quantitative assessment of mixtures of small compounds, using positive electrospray MS as the sole analytical tool. A version of the construct allowed HT reactivity profiling to be carried out on a range of ten carboxylic acids, ten aldehydes and ten isonitriles in the Ugi 4-component condensation reaction. The effect of various parameters such as the concentration of the monomers on the reactivity was investigated. The elaboration of a HT Hammett parameter assessment method was made possible by the development of an electrophilic version of the construct. The value of the Hammett value was afforded by means of combinatorial Hammett plots and values were successfully evaluated in a HT mode for around thirty anilines with substituents in the meta and para position of the aromatic ring. Finally, analytical constructs were used in an attempt to evaluate enzyme reaction kinetics via the labelling of peptides and small drug fragment with coded constructs, to afford affinity determinations between the enzyme (protease) and peptidic or fragment based substrates.
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Cacha, Brian Joseph Gonda. "Metallic nanoparticle deposition techniques for enhanced organic photovoltaic cells." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1598627.

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Energy generation via organic photovoltaic (OPV) cells provide many advantages over alternative processes including flexibility and price. However, more efficient OPVs are required in order to be competitive for applications. One way to enhance efficiency is through manipulation of exciton mechanisms within the OPV, for example by inserting a thin film of bathocuproine (BCP) and gold nanoparticles between the C60/Al and ZnPc/ITO interfaces, respectively. We find that BCP increases efficiencies by 330% due to gains of open circuit voltage (Voc) by 160% and short circuit current (Jsc) by 130%. However, these gains are complicated by the anomalous photovoltaic effect and an internal chemical potential. Exploration in the tuning of metallic nanoparticle deposition on ITO was done through four techniques. Drop casting Ag nanoparticle solution showed arduous control on deposited morphology. Spin-coating deposited very low densities of nanoparticles. Drop casting and spin-coating methods showed arduous control on Ag nanoparticle morphology due to clustering and low deposition density, respectively. Sputtered gold on glass was initially created to aid the adherence of Ag nanoparticles but instead showed a quick way to deposit aggregated gold nanoparticles. Electrodeposition of gold nanoparticles (AuNP) proved a quick method to tune nanoparticle morphology on ITO substrates. Control of deposition parameters affected AuNP size and distribution. AFM images of electrodeposited AuNPs showed sizes ranging from 39 to 58 nm. UV-Vis spectroscopy showed the presence of localized plasmon resonance through absorption peaks ranging from 503 to 614 nm. A linear correlation between electrodeposited AuNP size and peak absorbance was seen with a slope of 3.26 wavelength(nm)/diameter(nm).

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Fancy, Sally-Ann. "Physical and analytical applications of ion trapping techniques." Thesis, University of Kent, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311226.

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Wu, Xin 1967. "Probing colloidal forces with surface collisions." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40469.

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The principal objectives of this thesis are to introduce a new method, colloidal particle scattering (CPS), to measure colloidal and surface forces, and to demonstrate various applications of this method. CPS determines particle-particle interaction forces through creating particle collisions and extracting the interaction forces from the degree of asymmetry of the collision trajectories. Since the force to deflect a micron-sized particle is much smaller than that to deform a macroscopic spring or cantilever used in a commercial force apparatus, this new technique increases the resolution of force determination by four orders of magnitude.
Based on the CPS principles, we have built a force apparatus called "microcollider". It successfully determined the van der Waals forces and the electrostatic force between two 5 $ mu$m latex spheres at different salt concentrations. A "hairy" latex model was introduced to explain the measured van der Waals forces which are weaker than those predicted by theory assuming smooth latex surfaces. This is consistent with other experimental findings about the surfaces of latex particles.
A similar "hairy" model was applied to determine the adsorption layer thicknesses of two triblock copolymers adsorbed on latex particles. The results show that the configuration of the buoy block composed of polyethylene oxide (PEO) is more extended than a random PEO coil, which agrees with theoretical predictions. Moreover, excellent quantitative agreement between the adsorption layer thicknesses determined by CPS and other methods has been found.
Dynamic steric interactions between two high molecular weight PEO adlayers have also been studied. Both the elastic modulus and the adsorption layer thickness were determined. The results show that a thick layer has a lower elastic modulus than a thin one composed of the same polymer. This implies that an extended loop/tail structure in a thick layer is less stiff than a flat compact one in a thin layer, which is consistent with theory.
In addition, the microcollider can accurately determine particle-wall interactions as well. A rather weak electrokinetic lift force was measured. The results are in good agreement with the solutions rigorously derived from two new theories.
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Baldwin, Jean A. "Surface enhances Raman scattering of mercaptopyridine and pyrazinamide and the fabrication of a metal-ion sensor." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40315.

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Surface Enhanced Raman Scattering (SERS) is a process by which molecules near certain special metal surfaces exhibit Raman scattering that is measurably more intense than is the normal Raman scattering exhibited by molecules in the absence of the surface. The majority of SERS-active metal substrates, such as roughened electrodes and colloidal sols, are fabricated from coinage metals, Au, Ag and Cu. The principal subject of this thesis is the surface enhanced Raman spectroscopic study of the adsorbates; pyrazinamide, 2- and 4-mercaptopyridine. A range of SERS-active Ag substrates was used, viz., Ag colloids, metal liquid-like films (MELLFs), and roughened Ag electrodes. In addition, an original technique that encompasses both SERS and waveguide Raman spectroscopy (WRS), known as integrated optics, evanescent wave, surface enhanced Raman spectroscopy (IOEW-SERS) was developed. For this technique, a waveguide heterostructure was fabricated on nano-scale dimensions by self-assembly of silver colloidal particles on thin glass slides. The unique optical behaviors of both SERS and WRS systems are combined such that optically guided light propagates in the thin film, with an evanescent wave and couples with surface plasmon modes of metal particles. A comparative SERS study of 2- and 4-mercaptopyridine (MPy) was undertaken using all of the above methods. The purpose of this comparison was to determine the similarities between IOEW-SERS and other Ag SERS-active systems. These studies were extended by using a 4-MPy modified SERS-active optical waveguide as a thin film chemical sensor. Intermolecular interactions between probe ions, Cu$ sp{2+}$ and H$ sp+,$ with 4-MPy were observed by vibrational perturbations to the IOEW-SERS spectrum. X-ray photoelectron spectroscopy (XPS) allowed a layer-by-layer examination of the 4-MPy derivatized waveguide from the substrate to the Cu$ sp{2+}$ ion. A potential dependent SERS study of 4-MPy modified Ag electrodes, including the interact
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Li, Kuo-Bin. "Development of computer-assisted methods for the resonance assignment of heteronuclear 3D NMR spectra of proteins." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40381.

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An automated sequential assignment protocol for proteins is presented using heteronuclear 3D NMR. For the observed amino acid spin systems, the protocol includes an algorithm to determine their amino acid types. For the detected polypeptides, the protocol includes another algorithm to sequentially map them to the primary sequence. The former algorithm measures the similarity between the detected spin systems and the 20 standard amino acid patterns. Both chemical shift and topological likeness are considered. Knowing the amino acid types, the mapping algorithm assigns the detected polypeptides to proper positions within the protein primary sequence. The assignment protocol can be applied to spin systems generated from many different approaches. To demonstrate the assignment protocol, a few computer algorithms were designed to deduce the backbone and side-chain spin systems of proteins using heteronuclear 3D NMR. Magnetization transfer through peptide bonds can be observed in triple resonance 3D NMR. To automate the backbone assignment using the through-bond correlations, a generic algorithm is proposed. This algorithm searches and merges cross peaks among all available NMR spectra. Individual spin systems can be extracted and linked to create polypeptide chains based on the observed interresidue correlations. The algorithm is not restricted to any particular type of experiment. It is shown to be applicable to two sets of NMR spectra: the five experiment set of 3D HNCO, HNCA, HN(CO)CA, HCACO, $ sp{15}$N TOCSY-HMQC and the one-experiment set of 3D CBCANH. For the side chain assignment, an automated approach using a constrained partitioning algorithm has been developed to extract side chain spin systems of proteins by analyzing the 3D HCCH-COSY/TOCSY spectra. The extracted amino acid spin systems show the chemical shifts of the component nuclear spins as well as the connectivities between these spins. A 90-residue protein, the N-domain of chicken skeletal troponin-C
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Goodman, Gary Gene 1967. "A spectroscopic investigation of the non-aqueous electrochemical double-layer in ultrahigh vacuum." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282839.

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The research which will be presented on the combination of Raman spectroscopy with an ultrahigh vacuum (UHV) environment. The data show that UHV Raman spectroscopy is a useful analytical technique for modeling electrochemical interfaces. Raman spectroscopy and x-ray photoelectron spectroscopy (XPS) were utilized to study the surface chemistry of 1-butanol and thiophenol. These molecules were studied on coldly-deposited and annealed Ag films grown in the UHV environment. Surface Raman studies of molecules adsorbed on coldly-deposited Ag films are abundant, because these films support significant surface Raman enhancement. However, recent advances in instrumentation make studies at relatively unenhancing annealed Ag films possible. Roughness and surface enhancement factors for coldly-deposited and annealed Ag surfaces were investigated using thiophenol. In addition, a correction factor was determined which allows data acquired in the UHV environment to be directly compared to data acquired in the laboratory ambient. Butanol orientation was studied at these Ag surfaces using Raman surface selection rules. The orientation of butanol is dictated by the solid-vacuum interface and the unique surface morphology present at these surfaces. Br and Na ions were used to model the interaction of butanol with electrolyte species found in normal electrochemical systems. The coverages of Br and Na were calibrated using XPS. The orientation of butanol was determined for varying coverages of these ions and compared the bare Ag surfaces. My research represents the first stages of modeling the electrochemical double-layer in the UHV environment using Raman spectroscopy.
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Taylor, Chad Eric 1968. "A Raman spectroscopic investigation of 1-alkanethiol self-assembled monolayers at Ag surfaces." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/288869.

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Initial Raman spectra of 1-alkanethiol self-assembled monolayers (SAMs) at mechanically polished (MP) polycrystalline Ag surfaces could not be accurately interpreted for alkanethiol conformational order, because the spectra indicated these monolayers were contaminated. From XPS and Raman spectra of the unmodified MP Ag surfaces, the primary contaminants were identified as graphitic carbon and alkyl hydrocarbons. As determined by XPS, mechanical polishing procedures were adopted which reduced the quantity of these contaminants; nonetheless, significant contaminant band intensity continued to be observed in Raman spectra of these alkanethiol SAMs. The contaminant was more accurately identified as a polyaromatic hydrocarbon (PAH) and its molecular identity was suggested as phenanthrene (phen). Attempts at its removal from the unmodified MP Ag surface by solvent dissolution and electrochemical reductive desorption were unsuccessful. However, this contaminant study was significant, because it initiated efforts to further reduce the quantity of this contaminant at the MP Ag surface. XPS and Raman spectra of chemically polished (CP) polycrystalline (poly) Ag surfaces indicated them to contain substantially less carbon contamination than the MP Ag surfaces. Thus, Raman spectra of short-chain alkanethiol SAMs at CP Ag (poly) and (chemically polished) Ag (111) were interpreted for alkanethiol conformational order. To better understand the signal intensities from CP Ag (poly), Ag (111), and MP Ag, surface enhancement factors (SEFs) at these surface types were quantified and compared to those measured for electrochemically-roughened (ORC) Ag, coldly-deposited Ag (Cold Ag), "thick" room temperature (RT)-deposited Ag, and MP Au. These SEFs were determined by reference of monolayer signal intensities at these surfaces to that from the unenhancing MP Pt surface (i.e., SEF of 1). Relative surface Raman sensitivities were assessed with use of these SEFs, and limits of detection (LODs) were calculated from the normalized S/N values in these surface spectra. Since the single spectrograph and Triplemate were both available for surface and normal Raman spectral acquisition, their relative performances were characterized to determine the advantages/disadvantages of each spectrograph. Specifically, the S/N and S/B values in spectra acquired on both spectrographs were quantified and compared.
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Carter, David Allen 1958. "The application of SERS to the determination of relative adsorption strengths of nitrogen heterocycles on silver electrodes." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/290662.

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Research was undertaken to explore the application of surface enhanced Raman scattering (SERS) to the understanding of electrosorption phenomena. In particular, the relative strength of interactions between the functional groups of imidazole (N₁, N₂ and the π orbitals) on Ag electrodes was examined. This information is useful in understanding how the presence of these functional groups contributes to the relative adsorption strength of nitrogen heterocycles. A Raman spectrometer equipped with a charge-coupled device (CCD) detector was required to obtain reproducible SERS spectra in this research. It was also necessary to obtain accurate Raman shifts so that small (ca. 1-2 cm⁻¹ vibrational frequency changes between adsorbed and solution species could be detected. Therefore, significant effort was expended to develop calibration and spectral acquisition procedures which would provide acceptable accuracy and efficiency. Instrumental factors affecting Raman spectral calibration were studied. Available Raman shift calibration standards are reviewed and improved Raman shift data for these standards are reported. Several methods for the conversion of CCD position (pixel number) data to wavelength and Raman shifts are appraised using both experimental and simulated Raman data. SERS spectra for imidazole, 1-methylimidazole, and 2-methylimidazole support the conclusion that these molecules are adsorbed to the Ag electrode through the "pyridine nitrogen" (N₃). This evidence includes vibrational frequency shifts and orientations of these molecules deduced from the consideration of SERS surface selection rules. These data also suggest that the π orbital of the C=N bond interacts with the electrode at potentials near -0.25 V (versus SCE reference electrode) producing a tilt of the ring relative to the surface at these potentials. At potentials near the potential of zero charge (ca. -0.80 V), this interaction is minimized and these molecules assume a more vertical position. At the most negative potentials examined, the methylimidazoles interact with the surface predominantly through the methyl group. Preliminary work on the application of SERS to obtain surface coverage information was performed. An increase in SERS intensity with increasing solution concentration suggests adsorption isotherm-like behavior.
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Flora, Ware Howard. "Characterization and optimization of novel materials and interfaces in organic electronic devices." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280511.

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The research embodied in this text involves the characterization and optimization of novel materials and interfaces critical to the performance of organic electronic devices: Thrust 1. A scheme for elucidating the relative significance of energy vs. charge transfer (ET vs. CT) routes to guest dye emission in organic light-emitting diodes (OLEDs) was developed using near-IR emissive phthalocyanine (Pc) or naphthalocyanine (NPc) dopants. CT processes were observed to occur by an oxidized guest mechanism, which may be predicted from the solution electrochemistry of these materials. Additionally, a new series of quinacridone(QA)-based guest dyes were developed/characterized, modified at the N,N' positions to form four generations of Frechet dendrimers and their t-butyl-terminated analogues. As generation number increases, they exhibited decreased aggregation and increased luminescence efficiencies in the condensed phase. In solution, sharply declining rates of heterogeneous electron transfer were observed. Despite this trend, when these new molecules were doped into OLEDs, ET and CT routes to QA emission were not significantly inhibited. Thrust 2. A series of hybrid metal cluster-organic materials containing between one and seven [Re6(mu3-Se)8] 2+ clusters per molecule were electrochemically characterized. Dimer, trimer, and tetramer assemblies yielded uncoupled cluster oxidations. For cluster 7-mer dendrimers, uncoupled oxidations were observed for unconjugated linking groups, while coupled oxidations were observed with a conjugated linker, suggesting through-bond electrical polarization of the interior cluster. Thrust 3. The first UV-Vis attenuated total reflectance (ATR) method for the simultaneous determination of molecular tilt and azimuthal rotation for ultra-thin films of molecules with circularly-polarized electronic transition dipoles was developed, where a priori assumptions of the mean molecular orientation of either angle are not necessary in order to recover both mean angles. A model Pc-based system was evaluated, where this material is known to form in-plane molecular columns. Assuming a delta distribution in the orientation of each angle, it was determined that the mean tilt of the molecular plane away from the substrate surface is 80 ± 3°, and the mean azimuthal rotation of the molecular plane away from the column direction is 56.9 ± 0.8°. The dependence of molecular orientation on environmental exposure conditions and surface premodifiers was also evaluated.
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Books on the topic "Chemistry, Analytical. Chemistry, Physical"

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Goodson, David Z. Mathematical Methods for Physical and Analytical Chemistry. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118135204.

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Mathematical methods for physical and analytical chemistry. Hoboken, N.J: Wiley, 2011.

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L, Andrews David. Lasers in Chemistry. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990.

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Analytical methods in supramolecular chemistry. 2nd ed. Weinheim: Wiley-VCH, 2012.

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Schalley, Christoph A. Analytical methods in supramolecular chemistry. Weinheim: Wiley-VCH, 2007.

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Haghi, A. K. Methodologies and Applications for Analytical and Physical Chemistry. Toronto : Apple Academic Press, 2018. | Series: Innovations in physical chemistry. Monograph: Apple Academic Press, 2018. http://dx.doi.org/10.1201/9781315159539.

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Lasers in chemistry. 3rd ed. Berlin: Springer-Verlag, 1997.

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L, Andrews David. Lasers in chemistry. 2nd ed. Berlin: Springer-Verlag, 1990.

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Lasers in chemistry. Berlin: Springer-Verlag, 1986.

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Lasers in chemistry. Berlin: Spinger-Verlag, 1986.

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Book chapters on the topic "Chemistry, Analytical. Chemistry, Physical"

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Lewis, Gerald F. "Physical Properties." In Analytical Chemistry, 12–18. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07757-1_5.

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Clevett, K. J. "Physical property analyzers." In Process Analytical Chemistry, 39–105. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0591-0_3.

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Horovitz, Chaim T. "Analytical Chemistry of Scandium and Yttrium." In Biochemistry of Scandium and Yttrium, Part 1: Physical and Chemical Fundamentals, 75–133. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4313-8_3.

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Hotta, Shu. "Theory of Analytic Functions." In Mathematical Physical Chemistry, 181–265. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2225-3_6.

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Herten, Dirk-peter, Arina Rybina, Jessica Balbo, and Gregor Jung. "Single-Molecule Fluorescence Spectroscopy: The Ultimate Limit of Analytical Chemistry in the Condensed Phase." In Methods in Physical Chemistry, 711–35. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527636839.ch23.

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Pulay, Peter. "Analytical Derivative Methods in Quantum Chemistry." In Advances in Chemical Physics, 241–86. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470142943.ch4.

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McDonald, Ashley Ringer, and John P. Hagen. "Beyond the Analytical Solution: Using Mathematical Software To Enhance Understanding of Physical Chemistry." In ACS Symposium Series, 195–210. Washington, DC: American Chemical Society, 2019. http://dx.doi.org/10.1021/bk-2019-1312.ch014.

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Beć, Krzysztof B., Justyna Grabska, Christian W. Huck, and Yukihiro Ozaki. "Quantum Mechanical Simulation of Near-Infrared Spectra: Applications in Physical and Analytical Chemistry." In Molecular Spectroscopy, 353–88. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2019. http://dx.doi.org/10.1002/9783527814596.ch13.

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Höfener, Sebastian, Christof Hättig, and Wim Klopper. "Analytic Calculation of First-order Molecular Properties at the Explicitly-correlated Second-order Mller-Plesset Level." In Progress in Physical Chemistry Volume 3, 405–18. München: Oldenbourg Wissenschaftsverlag GmbH, 2010. http://dx.doi.org/10.1524/9783486711639.405.

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May, Willie E., Richard R. Cavanagh, Gregory C. Turk, Michael Winchester, John Travis, Melody V. Smith, Paul DeRose, et al. "Analytical Chemistry." In Springer Handbook of Metrology and Testing, 145–203. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-16641-9_4.

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Conference papers on the topic "Chemistry, Analytical. Chemistry, Physical"

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Hatsukawa, Yuichi, Takehito Hayakawa, Yosuke Toh, Nobuo Shinohara, and Masumi Oshima. "Application of multidimensional spectrum analysis for analytical chemistry." In Experimental nuclear physics in europe: Facing the next millennium. AIP, 1999. http://dx.doi.org/10.1063/1.1301835.

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Aoyagi, Mitsuhiro, Akihiro Uchibori, Takahi Takata, David L. Y. Louie, and Andrew J. Clark. "Sodium Fire Analysis Using a Sodium Chemistry Package in MELCOR." In 2020 International Conference on Nuclear Engineering collocated with the ASME 2020 Power Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icone2020-16751.

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Abstract The Sodium Chemistry (NAC) package in MELCOR has been developed to enhance application to sodium cooled fast reactors. The models in the NAC package have been assessed through benchmark analyses. The F7-1 pool fire experimental analysis is conducted within the framework of the U.S.–Japan collaboration; Civil Nuclear Energy Research and Development Working Group. This study assesses the capability of the pool fire model in MELCOR and provides recommendations for future model improvements because the physics of sodium pool fire are complex. Based on the preliminary results, analytical conditions, such as heat transfer on the floor catch pan are modified. The current MELCOR analysis yields lower values than the experimental data in pool combustion rate and pool, catch pan, and gas temperature during early time. The current treatment of heat transfer for the catch pan is the primary cause of the difference in the results from the experimental data. After sodium discharge stopping, the pool combustion rate and temperature become higher than experimental data. This is caused by absence of a model for pool fire suppression due to the oxide layer buildup on the pool surface. Based on these results, recommendations for future works are needed, such as heat transfer modification in terms of the catch pan and consideration of the effects of the oxide layer for both the MELCOR input model and pool physic.
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Perini, Federico, Anand Krishnasamy, Youngchul Ra, and Rolf D. Reitz. "Computationally Efficient Simulation of Multi-Component Fuel Combustion Using a Sparse Analytical Jacobian Chemistry Solver and High-Dimensional Clustering." In ASME 2013 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icef2013-19039.

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The need for more efficient and environmentally sustainable internal combustion engines is driving research towards the need to consider more realistic models for both fuel physics and chemistry. As far as compression ignition engines are concerned, phenomenological or lumped fuel models are unreliable to capture spray and combustion strategies outside of their validation domains — typically, high-pressure injection and high-temperature combustion. Furthermore, the development of variable-reactivity combustion strategies also creates the need to model comprehensively different hydrocarbon families even in single fuel surrogates. From the computational point of view, challenges to achieving practical simulation times arise from the dimensions of the reaction mechanism, that can be of hundreds species even if hydrocarbon families are lumped into representative compounds, and thus modeled with non-elementary, skeletal reaction pathways. In this case, it is also impossible to pursue further mechanism reductions to lower dimensions. CPU times for integrating chemical kinetics in internal combustion engine simulations ultimately scale with the number of cells in the grid, and with the cube number of species in the reaction mechanism. In the present work, two approaches to reduce the demands of engine simulations with detailed chemistry are presented. The first one addresses the demands due to the solution of the chemistry ODE system, and features the adoption of SpeedCHEM, a newly developed chemistry package that solves chemical kinetics using sparse analytical Jacobians. The second one aims to reduce the number of chemistry calculations by binning the CFD cells of the engine grid into a subset of clusters, where chemistry is solved and then mapped back to the original domain. In particular, a high-dimensional representation of the chemical state space is adopted for keeping track of the different fuel components, and a newly developed bounding-box-constrained k-means algorithm is used to subdivide the cells into reactively homogeneous clusters. The approaches have been tested on a number of simulations featuring multi-component diesel fuel surrogates, and different engine grids. The results show that significant CPU time reductions, of about one order of magnitude, can be achieved without loss of accuracy in both engine performance and emissions predictions, prompting for their applicability to more refined or full-sized engine grids.
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Pattar, Mohanraj, Soumya, B. R. Kerur, Balaji Biradar, Manjunath A., Mahalesh D., and Shranabasamma Amabalagi. "Elemental profile of herb and medicinal plant using spectro analytical AAS technique." In PROF. DINESH VARSHNEY MEMORIAL NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM 2018. Author(s), 2019. http://dx.doi.org/10.1063/1.5098718.

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Muppala, Siva P. R., and Sooraj P. M. Vasudevan. "Analytical comparison of lean premixed turbulent bunsen flames at high inlet temperatures and high operating pressures." In INTERNATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF COMBUSTION AND PROCESSES IN EXTREME ENVIRONMENTS (COMPHYSCHEM’20-21) and VI INTERNATIONAL SUMMER SCHOOL “MODERN QUANTUM CHEMISTRY METHODS IN APPLICATIONS”. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0033811.

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Lopez-Ruiz, Beatriz, Carmen Rueda, Cristina Sainz, Marta Sanchez-Paniagua, and Paz Sevilla. "PRESENTATION OF EDUCATIONAL VIDEOS USED AS MODERN TOOLS TO HELP PHARMACY STUDENTS TO UNDERSTAND CHEMICAL QUESTIONS OF ANALYTICS AND PHYSICAL CHEMISTRY." In International Technology, Education and Development Conference. IATED, 2017. http://dx.doi.org/10.21125/inted.2017.1102.

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Proust, Antoine, Michael Guillodo, Miche`le Pijolat, and Krzysztof Wolski. "Determination of Oxidation and Metallic Cations Release Kinetics on Nickel Base Alloys in PWR: Description of the On-Line Measurement Techniques." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48704.

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A common issue in Nuclear Power Plants (NPP) is the release of corrosion products from the steam generator tubes in primary circuit which gives rise, after their neutronic activation, to a residual activity very problematic during chemistry transients. The objectives of this work are not to solve directly this problem but rather to improve the understanding of this phenomenon by determining experimentally the kinetics of oxidation and metallic cations release of nickel base alloys. These results will contribute to progress in the building of a physical mechanism. The specificity of the test facility is (i) the on-line measurements of cation release rate by a highly sensitive analytical device and (ii) the in-situ measurement of oxidation rate by Diffuse Reflectance Spectroscopy (DRS). The primary water chemistry is controlled by means of a circulating micro-loop in titanium to avoid any interference with the test samples. A specific test vena is connected between the titanium micro-loop and the analytical device for on-line measurements. Metallic cation release from SG tube-samples is deduced from the measurement of nickel and iron concentrations in upstream the test vena by use of differential polarography and ICP-AES techniques. The precision on the determination of Ni and Fe concentrations is assumed to be a few tens of ppt. Oxidation or corrosion measurements are performed off-line by optical diffuse reflectance measurements specifically developed in this framework. The corrosion sample is mounted in a High Temperature and Pressure (HT-HP) spectroscopic flow-through cell connected to the test vena and fed with the primary chemistry from the titanium micro-loop. Analysis of reflection spectra provides the thickness of oxide layer. A set of parameters such as (i) temperature, (ii) hydrogen content and (iii) metallurgical surface state in nominal primary chemistry for test durations of 1500–2000 hours is planned to be investigated in the frame of metallic cation release and oxidation kinetics measurements of Ni base alloys. The aim of this paper is focused on the presentation of the online technique specifically developed in the French Technical Centre of AREVA NP to determine the metallic cation release and oxidation kinetic of Ni base alloys in primary water chemistry. First results of cation release and oxidation rate are given for shorter duration test.
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Barz, Dominik P. J., and Peter Ehrhard. "Fully-Coupled Modelling of Electrokinetic Flow and Migration of Electrolytes in Microfluidic Devices." In ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2007. http://dx.doi.org/10.1115/icnmm2007-30117.

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We investigate the electrokinetic flow and mass transport in a microchannel junction, serving as an injector of a microelectrophoresis device. In order to consider all essential features of this complex system, the electrical situation, the fluid dynamics, and the (physical) chemistry is taken into account. The electrical situation is modeled by a combination of an electrostatic and an electrodynamic approach. The fluid dynamics can be described by the Navier-Stokes equations, extended by an additional force term. The chemistry of the system is represented by source terms in the mass transport equations. Moreover, the interaction between the buffer concentration and the physicochemical properties of the channel wall is taken into consideration by an empirical approach. All equations are encoded in a dimensionless form so that dimensionless groups control the problem. Approximative analytical solutions for the phenomena within the electrical double layer can be found and, thus, we can reduce the numerical costs due to an asymptotic matching procedure. The models are implemented in a Finite Element Method (FEM) code and time-dependent, two-dimensional simulations are performed. The results of the simulations show the strong coupling between the involved physicochemical processes.
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Reeves, Curtis M., and Arthur H. Lefebvre. "Fuel Effects on Aircraft Combustor Emissions." In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-212.

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Results of an analytical program to determine the effects of broad variations in fuel properties on the pollutant emissions generated by several prominent turbojet engine combustion systems, including both tubo-annular and annular configurations, are presented. Measurements of mean drop size conducted at representative engine operating conditions are used to supplement the available experimental data on the effects of combustor design parameters, combustor operating conditions, and fuel type, on pollutant emissions. The results of the study indicate that the fuel’s physical properties that govern atomization quality and evaporation rates have a significant effect on the emissions of carbon monoxide and unburned hydrocarbons. Analysis of the available experimental data shows that the influence of fuel chemistry on the emissions of carbon monoxide, unburned hydrocarbons, and oxides of nitrogen, is small. Smoke emissions are found to be strongly dependent on combustion pressure, primary-zone fuel/air ratio, and the mode of fuel injection (pressure atomization or airblast). Fuel chemistry, as indicated by hydrogen content, is also important. Equations are presented for the correlation and/or prediction of exhaust emissions in terms of combustor size, combustor geometry, engine operating conditions, fuel spray characteristics, and fuel type.
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Tonouchi, J. H., T. J. Held, and H. C. Mongia. "A Semi-Analytical Finite Rate Two-Reactor Model for Gas Turbine Combustors." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-126.

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A gas turbine combustor is modeled using a two-reactor, finite-rate mixing and chemistry gas particle approach. The first reactor, used to simulate combustion in the primary zone, permits independent definition of the rates of macromixing and micromixing within the reactor, and the amount of premixing of fuel and air entering the reactor. Finite-rate macromixing is simulated by consideration of the fluid particle residence time distribution frequency function and the ages of the particles in the reactor. Finite-rate micromixing is simulated using a modified Coalescence-Dispersion (C-D) model. The second reactor model simulates combustion in the dilution zone of the combustor, and is modeled as a plug flow reactor with cross-flowing jets of dilution air and co-flowing streams of cooling film air. The primary zone reactor model predicts physically reasonable trends in mean temperature, and CO and NOx emissions as the macromixing and micromixing parameters are varied with respect to the perfectly-stirred reactor limit. The model also has shown to predict the correct trends in modeling NOx and CO emissions from aircraft engine gas turbine combustors.
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Reports on the topic "Chemistry, Analytical. Chemistry, Physical"

1

Donahue, Edward J. Analytical Equipment for Chemistry Research. Fort Belvoir, VA: Defense Technical Information Center, May 1999. http://dx.doi.org/10.21236/ada387600.

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Burtis, C. (Analytical instrumentation in clinical chemistry). Office of Scientific and Technical Information (OSTI), July 1987. http://dx.doi.org/10.2172/6750988.

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Kostoff, Ronald N., and Ronald A. DeMarco. Science and Technology Text Mining: Analytical Chemistry. Fort Belvoir, VA: Defense Technical Information Center, January 2001. http://dx.doi.org/10.21236/ada415945.

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Barr, Mary E., and Thomas J. Farish. Analytical Chemistry Core Capability Assessment - Preliminary Report. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1040815.

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Ensor, D. D. Separation and Analytical Chemistry of the Actinides. Office of Scientific and Technical Information (OSTI), June 1998. http://dx.doi.org/10.2172/763051.

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Hertz, Harry S. Center for Analytical Chemistry 1988 technical activities. Gaithersburg, MD: National Bureau of Standards, 1988. http://dx.doi.org/10.6028/nist.ir.88-3875.

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Frank, Robert A. Physical chemistry of carbothermic reduction of alumina. Office of Scientific and Technical Information (OSTI), September 1985. http://dx.doi.org/10.2172/6570345.

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Mackay, R. A. Physical Chemistry of Exothermic Gas-Aerosol Calaorimetry. Fort Belvoir, VA: Defense Technical Information Center, January 1985. http://dx.doi.org/10.21236/ada150872.

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Green, D. W., R. R. Heinrich, D. G. Graczyk, P. C. Lindahl, and A. S. Boparai. Analytical Chemistry Laboratory progress report for FY 1991. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10135386.

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Green, D. W., A. S. Boparai, and D. L. Bowers. Analytical Chemistry Laboratory. Progress report for FY 1996. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/471429.

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