Relevant bibliographies by topics / Analytical Chemistry Techniques

Contents

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

Academic literature on the topic 'Analytical Chemistry Techniques'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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Journal articles on the topic "Analytical Chemistry Techniques"

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ROTHBART, DANIEL, and LADISLAV KOHOUT. "Justifying Instrumental Techniques of Analytical Chemistry." Annals of the New York Academy of Sciences 988, no. 1 (May 2003): 250–56. http://dx.doi.org/10.1111/j.1749-6632.2003.tb06106.x.

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Harrison, W. W., C. M. Barshick, J. A. Klingler, P. H. Ratliff, and Y. Mei. "Glow discharge techniques in analytical chemistry." Analytical Chemistry 62, no. 18 (September 1990): 943A—949A. http://dx.doi.org/10.1021/ac00217a001.

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ZENOBI, R., and F. REGNIER. "Analytical techniques." Current Opinion in Chemical Biology 8, no. 5 (October 2004): 517–18. http://dx.doi.org/10.1016/s1367-5931(04)00114-0.

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Geddes, Chris D., and Ramachandram Badugu. "Analytical techniques." Current Opinion in Chemical Biology 9, no. 5 (October 2005): 488. http://dx.doi.org/10.1016/j.cbpa.2005.08.023.

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Fischer, Peter M. "Analytical techniques." Current Opinion in Chemical Biology 11, no. 5 (October 2007): 477–79. http://dx.doi.org/10.1016/j.cbpa.2007.08.019.

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Shea, J. J. "Handbook of Instrumental Techniques for Analytical Chemistry." IEEE Electrical Insulation Magazine 14, no. 6 (November 1998): 42. http://dx.doi.org/10.1109/mei.1998.730821.

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Ponto, James A. "Analytical and Chromatographic Techniques in Radiopharmaccutical Chemistry." Clinical Nuclear Medicine 11, no. 9 (September 1986): 673. http://dx.doi.org/10.1097/00003072-198609000-00025.

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Callahan, Ronald J. "Analytical and Chromatographic Techniques in Radiopharmaceutical Chemistry." Clinical Nuclear Medicine 13, no. 4 (April 1988): 309. http://dx.doi.org/10.1097/00003072-198804000-00027.

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Taylor, C. G. "Analytical and chromatographic techniques in radiopharmaceutical chemistry." Analytica Chimica Acta 189 (1986): 390–91. http://dx.doi.org/10.1016/s0003-2670(00)83745-9.

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Armenta, Sergio, Salvador Garrigues, Francesc A. Esteve-Turrillas, and Miguel de la Guardia. "Green extraction techniques in green analytical chemistry." TrAC Trends in Analytical Chemistry 116 (July 2019): 248–53. http://dx.doi.org/10.1016/j.trac.2019.03.016.

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Dissertations / Theses on the topic "Analytical Chemistry Techniques"

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Olsson, Jeanette. "New Techniques for Chiral Separations." Doctoral thesis, Karlstad : Faculty of Technology and Science, Chemistry, Karlstads universitet, 2008. http://www.diva-portal.org/kau/abstract.xsql?dbid=1594.

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Altun, Zeki. "New Techniques for Sample Preparation in Analytical Chemistry." Licentiate thesis, Karlstad University, Division for Chemistry, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1374.

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Sample preparation is often a bottleneck in systems for chemical analysis. The aim of this work was to investigate and develop new techniques to address some of the shortcomings of current sample preparation methods. The goal has been to provide full automation, on-line coupling to detection systems, short sample preparation times and high-throughput.

A new technique for sample preparation that can be connected on-line to liquid chromatography (LC) and gas chromatography (GC) has been developed. Microextraction in packed syringe (MEPS) is a new solid-phase extraction (SPE) technique that is miniaturized and can be fully automated. In MEPS approximately 1 mg of sorbent material is inserted into a gas tight syringe (100-250 μL) as a plug. Sample preparation takes place on the packed bed. Evaluation of the technique was done by the determination of local anaesthetics in human plasma samples using MEPS on-line with LC and tandem mass spectrometry (MS-MS). MEPS connected to an autosampler was fully automated and clean-up of the samples took one minute. In addition, in the case of plasma samples the same plug of sorbent could be used for about 100 extractions before it was discarded.

A further aim of this work was to increase sample preparation throughput. To do that disposable pipette tips were packed with a plug of porous polymer monoliths as sample adsorbent and were then used in connection with 96-well plates and LC-MS-MS. When roscovitine in human plasma and water samples was used as model substance, a 96-plate was handled in two minutes.

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Starkey, Jason A. "Biochemical applications of microcolumn separation techniques." [Bloomington, Ind.] : Indiana University, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3278220.

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Thesis (Ph. D.)--Indiana University, Dept. of Chemistry, 2007.
Source: Dissertation Abstracts International, Volume: 68-09, Section: B, page: 5919. Adviser: Milos V. Novotny. Title from dissertation home page (viewed May 9, 2008).
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Simjee, Nafeesa. "Development of microelectrode techniques for analytical measurements." Thesis, University of Warwick, 2003. http://wrap.warwick.ac.uk/2664/.

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This thesis describes the development and application of hydrodynamic modulation voltammetric (HMV) techniques coupled to ultramicroelectrodes (UMEs) that possess intrinsically high mass transport rates in quiescent solutions. This study demonstrates that the well defined convective-diffusive conditions of the microjet electrode (MJE) arrangement allows mass transport to be enhanced by almost two orders of magnitude compared to a 25 mm diameter disc-shaped UME. The MJE comprises a nozzle which is used to deliver solution to a UME surface at high velocity. Scanning electrochemical microscopy (SECM) with small UMEs has been used to image the hydrodynamics of the jet system with high precision. Variations in local mass transport for both IrCl63- and Fe(CN)64- oxidation at a range of flow rates has been observed at various positions within the impinging jet and the stagnation zone has been thoroughly characterised under a variety of experimental conditions. Agreement has been found between experiment and theory for voltammetric data recorded with the nozzle and UME aligned in the stagnation zone, for a range of viscous solutions examined. By modulating the mass transport rate to the surface of an UME, in the MJE arrangement, by the introduction of a rotating blade between the end of the nozzle and the UME, it was possible to enhance the current sensitivity of the system. Trace level detection, to 2 x 10-7 mol dm-3 IrCl63- solution, was readily facilitated. This type of HMV experiment has utilised two methods to provide the reference signal for phase-sensitive detection of the current signal, involving either a dual-disc electrode or a single UME coupled to an LED detection system. Both HMV methods have been shown to work well.
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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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Sartoros, Christine. "Application of artificial intelligence techniques for inductively coupled plasma spectrometry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0016/NQ44574.pdf.

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Haines, Emma Sara. "The application of chemometric techniques to spectroscopic data." Thesis, University of Hull, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301636.

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Kaza, Lakshmi S. "Novel Thermal Analytical Techniques to Characterize Drugs and Drug Delivery." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1317258017.

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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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Pekay, Lars Arthur. "Investigations in coal chemistry : advancements of analytical techniques and reactive oxidative desulfurization /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487760357819292.

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Books on the topic "Analytical Chemistry Techniques"

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Royal Society of Chemistry (Great Britain), ed. More modern chemical techniques. London: Royal Society of Chemistry, 2001.

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1959-, Mitra S., ed. Sample preparation techniques in analytical chemistry. Hoboken, N.J: Wiley-Interscience, 2003.

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Helmut, Günzler, and Williams Alex, eds. Handbook of analytical techniques. Weinheim: Wiley-VCH, 2001.

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1962-, Cortón Eduardo, ed. Bioanalytical chemistry. Hoboken, N.J: John Wiley & Sons, 2004.

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1962-, Cortón Eduardo, ed. Bioanalytical chemistry. Hoboken, New Jersey: John Wiley & Sons, Inc., 2016.

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Hargis, Larry G. Analytical chemistry: Principles and techniques. London: Prentice-Hall International, 1988.

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Caroli, Sergio, and Gyula Záray, eds. Analytical Techniques for Clinical Chemistry. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118271858.

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Michael, Swartz, ed. Analytical techniques in combinatorial chemistry. New York: Marcel Dekker, 2000.

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Dean, John A. Extraction techniques in analytical sciences. Chichester, U.K: Wiley, 2009.

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Dean, John A. Extraction techniques in analytical sciences. Chichester, West Sussex, U.K: J. Wiley, 2009.

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Book chapters on the topic "Analytical Chemistry Techniques"

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Malhotra, Priti. "Spectroanalytical Techniques." In Analytical Chemistry, 27–39. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26757-4_3.

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Vaz, Sílvio. "Analytical Techniques." In Analytical Chemistry Applied to Emerging Pollutants, 37–78. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74403-2_3.

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Belchamber, R. M. "Non-invasive techniques." In Process Analytical Chemistry, 329–52. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0591-0_10.

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Burgot, Gwenola, and Jean-Louis Burgot. "Electro-Migration Techniques." In General Analytical Chemistry, 210–28. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003189688-20.

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Ferguson, Paul, and Douglas Raynie. "Green Analytical Chemistry." In Green Techniques for Organic Synthesis and Medicinal Chemistry, 43–70. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119288152.ch3.

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Ferguson, Paul, Mark Harding, and Jennifer Young. "Green Analytical Chemistry." In Green Techniques for Organic Synthesis and Medicinal Chemistry, 659–83. Chichester, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9780470711828.ch25.

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Mailappa, A. S. "Basic Techniques of Analytical Chemistry." In Experimental Soil Fertility and Biology, 35–36. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003430100-5.

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Burgot, Jean-Louis. "Techniques Based on Concept of Impedance Impedance Spectroscopy." In General Analytical Chemistry, 110–16. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003224556-18.

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Ariza, José Luis Gómez, and Tamara García Barrera. "Greening Sampling Techniques." In Handbook of Green Analytical Chemistry, 67–83. Chichester, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781119940722.ch5.

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Fifield, F. W., and D. Kealey. "Thermal Techniques." In Principles and Practice of Analytical Chemistry, 475–503. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2179-2_11.

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Conference papers on the topic "Analytical Chemistry Techniques"

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Patonay, Gabor, Richard J. Williams, and Dana Shealy. "Near-Infrared Fluorescence Techniques in Analytical Chemistry." In Laser Applications to Chemical Analysis. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/laca.1992.mb1.

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The near-infrared (NIR) region is advantageous due to lower interference since there are only a few groups of compounds that can fluoresce. Examples of analytical application of NIR fluorescence with emphasis on laser diode spectroscopy will be given.
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Mazurkiewicz, Paul. "Advanced Analytical Chemistry Techniques Enable Rapid, Cheap and Concise Electronic Failure Analysis." In ISTFA 2004. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.istfa2004p0457.

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Abstract This article introduces several analytical chemistry techniques that are extremely useful in the electronics failure analysis (FA) laboratory, but are not normally found in FA laboratories. It presents the techniques in simple language and makes a case for the inclusion of chemists in the rapidly evolving and ever-shrinking world of microelectronic failure analysis. The article discusses the following techniques in terms of their applications, advantages, and operating principles: gel permeation chromatography, gas chromatography-mass spectrometry, Fourier transform-infrared spectroscopy, and electron spectroscopy for chemical analysis (ESCA). As we move into the world of nanotechnology, these techniques will become key in analyzing failures that cannot be visualized using traditional FA methods.
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Niessner, Reinhard. "Environmental analytical chemistry and optical sensors." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cmi1.

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Applications of laser spectroscopy for highly sensitive detection of harmful substances are demonstrated. • Laser-induced, time-resolved fluorescence applied to aerosol and water. Analytes of interest are polycyclic aromatic hydrocarbons and geological tracer substances. Detection limit is around 10 ppt. • Laser-induced breakdown spectroscopy for rapid screening of the elemental content of soil, sand, and landfill barrier. The various parameters for signal formation are discussed. Detection limit is around 10 ppm for selected heavy metals. • Resonant photoacoustic detection of free-flowing particles. Via a modulated diode laser the true light absorption by ultrafine carbon particles is measured in situ. Common to all techniques is proportionality of signal versus laser power. In the case of laser-induced fluorescence the construction of fiber-optical sensors is possible. First applications to real matrices are presented.
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Samouei, H., H. C. A. Yong, K. Tooker, and A. Mahmoudkhani. "Analytical Techniques Unveil the Nature of Waxphaltenes Interactions in Solution and with Carbonates and Sandstones." In SPE International Conference on Oilfield Chemistry. SPE, 2023. http://dx.doi.org/10.2118/213796-ms.

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Abstract Several studies have demonstrated the nature of wax and asphaltene interactions and their impact on crude properties, including deposition characteristics. Laboratory and field studies have confirmed organic deposits from offshore oil wells containing asphaltenes and paraffins coprecipitated together to form solid aggregates. These can be described as "Waxphaltenes." This study used different techniques to understand better the properties of waxphaltenes from an offshore operation and how they interact with different rock mineralogy. It was found that mixing crude oil with acetone or methyl ethyl ketone (MEK) is highly efficient in the precipitation and isolation of heavy organics and other polar fractions than the traditional use of pentane or heptane from bulk hydrocarbon fluid. GC, FTIR, NMR, and elemental analysis revealed the composition characteristics of isolated organic solids. ATR-FTIR and AFM-IR methods were used to monitor the deposition of oil and organics on the surface of carbonate and silicate rocks. Water imbibition and solvent wash could remove some of the waxphaltenes dominated deposit from the surface but leave a key monolayer of organics adhered to the surface via hydrogen- or ionic bonding, which act as hydrophobic film. A plausible mechanism of such film formation may include di-or multivalent ions as bridging agents to bind with carboxylate and hydroxyl groups present in organic fractions.
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Schwoeble, A. J., Brian R. Strohmeier, and John D. Piasecki. "The influence of surface chemistry on GSR particles: using XPS to complement SEM/EDS analytical techniques." In Scanning Microscopy 2010, edited by Michael T. Postek, Dale E. Newbury, S. Frank Platek, and David C. Joy. SPIE, 2010. http://dx.doi.org/10.1117/12.863906.

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Liu, Zhengwei, Sankaran Murugesan, Sunder Ramachandran, and Peng Jin. "Next Generation Oilfield on-Site Trace Chemicals Analysis by SERS." In SPE International Conference on Oilfield Chemistry. SPE, 2021. http://dx.doi.org/10.2118/204369-ms.

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Abstract Accurate and precise monitoring of chemical additives in oilfield brine is an important aspect of oil and gas operations towards corrosion control and flow assurance. Many operators are required to monitor the residual concentrations of chemical additives in production systems at specific locations to monitor and troubleshoot factors affecting chemical deliverability and performance. However, residual measurements are extremely problematic due to many factors, including the surface active nature of the chemicals and high ionic strength of the brine. The error on residual measurements can often be over 100%. Residual measurement typically requires the collection of a water sample, which often needs to be transported to a centralized analytical laboratory. Analytical techniques used to measure residuals are based on several combinations of separation (e.g. chromatography, liquid-liquid extraction, etc.) and detection (e.g. various forms of spectroscopy). However, most of these methods lack portability and require tedious laboratory procedures located off-site. The current paper describes a nanotechnology-enabled Raman spectroscopy method developed and tested for monitoring chemical inhibitor residuals. Development of this technology with handheld instrumentation provides better detection and quantification of chemical additives in the field and reduces time and cost compared to sending samples to off-site laboratories for data collection.
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Dedmon, Steven L., Jay M. Galbraith, and James M. Pilch. "Improving Axle Performance." In 2013 Joint Rail Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/jrc2013-2483.

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North American freight car axle performance is affected by load and number of cycles, fretting corrosion resistance, mitigation of surface damage and repair practices once damage has occurred. Manufacturers also affect axle performance through chemistry balance, melting practice, forging, and heat treatment and machining techniques. In this investigation, the authors describe several ways axle life has been improved by manufacturers and an assessment of each technique using appropriate analytical methods, including evaluation of mechanical properties and finite element analyses.
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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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ENGEL, Wanda, Roseli Fernandes GENNARI, Cauê FERREIRA, and Marcia RIZZUTTO. "IVORY CHARACTERIZATION USING PORTABLE VIBRATIONAL SPECTROMETRY." In SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE. DR. D. SCIENTIFIC CONSULTING, 2022. http://dx.doi.org/10.48141/sbjchem.21scon.40_abstract_engel.pdf.

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Ivory was commonly used in the manufacture of numerous objects. It refers to the tusk and teeth of animals. Almost all ivory pieces, in the past, found on the market were authentic; however, nowadays, ivory extraction is an illegal practice. Thus, official government and animal protection entities have been fighting intensely against this criminal practice, but the production and sale continue. There are numerous difficulties in identifying the illegal extraction and use of ivory, and the correct characterization is certainly a significant challenge. A proper ivory characterization is an important tool in the fight against ivory extraction once it is possible to trace the piece to the animal and sometimes even to its origin. It is also useful for museums and art collectors to verify the authenticity of the piece. Ivory, also known as the inorganic gemstone, is composed of calcium phosphate, collagen, elastin, and lipids. Different tests can differentiate ivory from bones or celluloid; however, some can damage the piece. Because of that, analytical techniques are preferred. However, the method to be used must have the capability of differencing small differences once the chemical elements present in ivory, bone, or even celluloid are the same. In this work, three analytical methodologies were used to check the possibility of having an alternative test applied on supposed ivory samples. All three methods used, X-Ray Fluorescence (XRF) and vibrational spectrometry techniques (FT-IR and Raman), are portable equipment to facilitate the analysis in situ. FT-IR and Raman spectra obtained had shown differences between bone and ivory samples, indicating the art collector samples are probably ivory. These differences allied with the portability of the analysis can be used as an additional test to be done in ivory and bone-based materials.
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Wylde, Jonathan J., and Alexander R. Thornton. "Calcite Scale Mitigation in a Very Low Watercut, Low Salinity, HPHT Environment: Lessons Learned in Surveillance, Mitigation and Scale Inhibitor Performance Monitoring for an Onshore Field." In SPE International Conference on Oilfield Chemistry. SPE, 2023. http://dx.doi.org/10.2118/213808-ms.

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Abstract This prolific field has enjoyed mineral scale free production for many years but has lately experienced a series of unexpected (and harsh!) calcium carbonate scaling events. Well watercuts are barely measurable yet mineral scale deposits accumulate rapidly within wellhead chokes and flowlines. This paper describes the scaling experience and the challenges of mitigation in an extraordinarily low water cut environment. A detailed analysis of the scaling experience is presented: plant layout, scaling locations, scale surveillance and monitoring programs, laboratory testing, product selection and implementation, and scale inhibitor efficacy surveillance and monitoring programs (and details will be provided on each of these topics). The surveillance and application techniques for scale inhibitor deserve mention as very important lessons were learned for low water cut scenarios. For instance, a heavily diluted scale inhibitor was necessary to be effective and the detailed laboratory and field implementation process is described that led to this key lesson learned. Laboratory testing for chemical selection was performed using classical techniques and identified a polymeric scale inhibitor suitable for the scaling scenario. This is reported in detail, however what could not be tested easily in the laboratory was the effect of <1% water cut and how the product would perform in that environment. A risk managed field surveillance program was initiated to determine field efficiency of the polymer, and involved trialing the chemical on a single well pad using temporary installation of a restricted orifice plate (ROP) to help modify the scale inhibitor residence time (and impact of product dilution) for dispersibility and optimum inhibitor action. The lessons learned from this trial were subsequently rolled-out field wide with very positive results. This paper demonstrates a unique scale formation and control situation that utilized a previously unreported and analytical surveillance approach. The cumulative performance derived by improving not only chemical selection, but the way the wells were managed via surveillance and chemical management decision making processes is compelling and of value to other production chemists working in the scaling arena.
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Reports on the topic "Analytical Chemistry Techniques"

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Gautier, M. A. Health and environmental chemistry: analytical techniques, data management, and quality assurance. Volume 1. Office of Scientific and Technical Information (OSTI), May 1986. http://dx.doi.org/10.2172/5107848.

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Gautier, M. A. Health and environmental chemistry: Analytical techniques, data management, and quality assurance. Volume 1, Manual. Office of Scientific and Technical Information (OSTI), November 1993. http://dx.doi.org/10.2172/10136159.

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Neyedley, K., J. J. Hanley, Z. Zajacz, and M. Fayek. Accessory mineral thermobarometry, trace element chemistry, and stable O isotope systematics, Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328986.

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Abstract:
The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec, that is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate the P-T conditions of crystallization, and oxidation state of the MIC magmas, accessory minerals (zircon, rutile, titanite) have been characterized using a variety of analytical techniques (e.g., trace element thermobarometry). The resulting trace element and oxythermobarometric database for accessory minerals in the MIC represents the first examination of such parameters in an Archean magmatic complex in a world-class mineralized district. Mineral thermobarometry yields P-T constraints on accessory mineral crystallization consistent with the expected conditions of tonalite-trondhjemite-granite (TTG) magma genesis, well above peak metamorphic conditions in the DBL camp. Together with textural observations, and mineral trace element data, the P-T estimates reassert that the studied minerals are of magmatic origin and not a product of metamorphism. Oxygen fugacity constraints indicate that while the magmas are relatively oxidizing (as indicated by the presence of magmatic epidote, titanite, and anhydrite), zircon trace element systematics indicate that the magmas were not as oxidized as arc magmas in younger (post-Archean) porphyry environments. The data presented provides first constraints on the depth and other conditions of melt generation and crystallization of the MIC. The P-T estimates and qualitative fO2 constraints have significant implications for the overall model for formation (crystallization, emplacement) of the MIC and potentially related mineral deposits.
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Neyedley, K., J. J. Hanley, P. Mercier-Langevin, and M. Fayek. Ore mineralogy, pyrite chemistry, and S isotope systematics of magmatic-hydrothermal Au mineralization associated with the Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328985.

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Abstract:
The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec. The MIC is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate genetic links between deposits and the MIC, mineralized samples from two of the epizonal 'intrusion-related' Au-Cu vein systems (Doyon and Grand Duc Au-Cu) have been characterized using a variety of analytical techniques. Preliminary results indicate gold (as electrum) from both deposits occurs relatively late in the systems as it is primarily observed along fractures in pyrite and gangue minerals. At Grand Duc gold appears to have formed syn- to post-crystallization relative to base metal sulphides (e.g. chalcopyrite, sphalerite, pyrrhotite), whereas base metal sulphides at Doyon are relatively rare. The accessory ore mineral assemblage at Doyon is relatively simple compared to Grand Duc, consisting of petzite (Ag3AuTe2), calaverite (AuTe2), and hessite (Ag2Te), while accessory ore minerals at Grand Duc are comprised of tellurobismuthite (Bi2Te3), volynskite (AgBiTe2), native Te, tsumoite (BiTe) or tetradymite (Bi2Te2S), altaite (PbTe), petzite, calaverite, and hessite. Pyrite trace element distribution maps from representative pyrite grains from Doyon and Grand Duc were collected and confirm petrographic observations that Au occurs relatively late. Pyrite from Doyon appears to have been initially trace-element poor, then became enriched in As, followed by the ore metal stage consisting of Au-Ag-Te-Bi-Pb-Cu enrichment and lastly a Co-Ni-Se(?) stage enrichment. Grand Duc pyrite is more complex with initial enrichments in Co-Se-As (Stage 1) followed by an increase in As-Co(?) concentrations (Stage 2). The ore metal stage (Stage 3) is indicated by another increase in As coupled with Au-Ag-Bi-Te-Sb-Pb-Ni-Cu-Zn-Sn-Cd-In enrichment. The final stage of pyrite growth (Stage 4) is represented by the same element assemblage as Stage 3 but at lower concentrations. Preliminary sulphur isotope data from Grand Duc indicates pyrite, pyrrhotite, and chalcopyrite all have similar delta-34S values (~1.5 � 1 permille) with no core-to-rim variations. Pyrite from Doyon has slightly higher delta-34S values (~2.5 � 1 permille) compared to Grand Duc but similarly does not show much core-to-rim variation. At Grand Duc, the occurrence of Au concentrating along the rim of pyrite grains and associated with an enrichment in As and other metals (Sb-Ag-Bi-Te) shares similarities with porphyry and epithermal deposits, and the overall metal association of Au with Te and Bi is a hallmark of other intrusion-related gold systems. The occurrence of the ore metal-rich rims on pyrite from Grand Duc could be related to fluid boiling which results in the destabilization of gold-bearing aqueous complexes. Pyrite from Doyon does not show this inferred boiling texture but shares characteristics of dissolution-reprecipitation processes, where metals in the pyrite lattice are dissolved and then reconcentrated into discrete mineral phases that commonly precipitate in voids and fractures created during pyrite dissolution.
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