Relevant bibliographies by topics / Titrations

Contents

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

Academic literature on the topic 'Titrations'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Titrations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Titrations"

1

FERNANDEZ-MAESTRE, Roberto. "THE IMPORTANCE OF TEACHING TITRATION CURVES IN ANALYTICAL CHEMISTRY." Periódico Tchê Química 17, no. 34 (March 20, 2020): 213–19. http://dx.doi.org/10.52571/ptq.v17.n34.2020.230_p34_pgs_213_219.pdf.

Full text
Abstract:
Titration curves are an essential subject of an Analytical Chemistry course. The main objective of calculating titration curves is the selection of an indicator for such titrations. The calculation of titration errors is imperative because they establish if a given indicator can be used for a given titration. This study reviews the available literature on titration curves and calculating their errors. Its purpose is to draw attention to the importance of undergraduate chemistry students having competencies to determine the titration errors rather than skills to build titration curves as the ultimate purpose of these curves is to determine the failure committed when using a given indicator to assess their endpoints. It is shown that the pH and potential calculation at the equivalence point in acid-base and redox titrations, respectively, are not required to choose the titration indicator, one that yields an acceptable error according to the type of application needed. Methods to calculate these errors in the four main types of titrations are presented; those for complexometric and precipitation titrations are simpler than in the literature. Here, it is also demonstrated that calculating points immediately after and before the curve inflection are more critical for this selection in these two types of titrations. Also, it is deducted that complexometric and precipitation curves are not required to select indicators for these titrations. These demonstrations are essential because analytical chemistry teachers may disregard teaching important topics by spending time calculating unnecessary titration curves (complexometric and precipitation titrations) or additional points of titration curves (redox and acid-base titrations) when the calculation of titration errors of these reactions is more critical. Most analytical chemistry textbooks neglect this topic. Undergraduate chemistry programs should focus more on calculating titration errors than on the construction of titration curves.
APA, Harvard, Vancouver, ISO, and other styles
2

Gonzalez, G. G., A. M. Jimenez, and A. G. Asuero. "Titration errors in acid-base titrations." Microchemical Journal 41, no. 1 (February 1990): 113–20. http://dx.doi.org/10.1016/0026-265x(90)90103-c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gibson, Graham, Alexei A. Neverov, and R. S. Brown. "Potentiometric titration of metal ions in methanol." Canadian Journal of Chemistry 81, no. 6 (June 1, 2003): 495–504. http://dx.doi.org/10.1139/v03-035.

Full text
Abstract:
The potentiometric titrations of nine lanthanideIII triflates, ZnII and CuII triflate, and the NiII, CoII, MgII, and TiIV perchlorates were obtained in methanol to determine the titration constants (defined as the sspH at which the [OCH3–]/[Mx+]t ratios are 0.5 and 1.5) as well as the apparent sspKa values for deprotonation of the metal-bound solvent molecules. The titrations were performed under various conditions with and without added salts as electrolytes, and the variations in the titration constants are discussed. In selected cases (La3+, Zn2+) the titration profiles were analyzed using a complex fitting program to obtain information about the species present in solution.Key words: potentiometric titration, methanol, sspH, metal ion, lanthanides, apparent sspKa.
APA, Harvard, Vancouver, ISO, and other styles
4

Besenhard, J. O., H. P. Gansmann, and H. Meyer. "Bestimmung von Oberflächenoxiden auf Rußen durch potentiometrische Direkttitration in nichtwäßrigen Lösungsmitteln / Determination of Surface Oxides on Carbon Blacks by Direct Potentiometric Titration in Non-Aqueous Solvents." Zeitschrift für Naturforschung B 45, no. 6 (June 1, 1990): 857–63. http://dx.doi.org/10.1515/znb-1990-0617.

Full text
Abstract:
An attempt is made to quantitatively determine acidic and basic surface oxides on carbon blacks and also to monitor their acid and base strength distribution by direct potentiometric titrations in non-aqueous media.In contrast to direct titration procedures proposed so far, our method allows to distinguish clearly between several types of acidic surface oxides of different acid strength. This is mainly achieved by improvements of the non-aqueous titration media. The total contents of weakly and strongly acidic and also of basic oxides determined by this very fast method is comparable to results obtained by slow and laborious indirect titrations.
APA, Harvard, Vancouver, ISO, and other styles
5

Ramette, Richard W. "Gravimetric Titrations: In Support of Weight Titration Techniques." Journal of Chemical Education 81, no. 12 (December 2004): 1715. http://dx.doi.org/10.1021/ed081p1715.2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Morák, M., and Ústi nad Labem. "Titration von Alkylammoniumsalzen / Titrations of Alkyl Ammonium Salts." Tenside Surfactants Detergents 26, no. 3 (May 1, 1989): 215–21. http://dx.doi.org/10.1515/tsd-1989-260316.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fuhrmann, B., and U. Spohn. "A PC-based titrator for flow gradient titrations." Journal of Automatic Chemistry 15, no. 6 (1993): 209–16. http://dx.doi.org/10.1155/s1463924693000276.

Full text
Abstract:
This paper describes a PC (personal computer) based titrator which was developed for gradient flow titrations. Concentration gradients were generated electrolytically or volumetrically in small tubes. Complete titration curves can be recorded on-line and evaluated automatically. The titrator can be used with all liquid flow detectors with low axial dispersion. The titrator was evaluated for the titration of thiosulphate with electrogenerated triiodide and for the titration of ammonia with electrogenerated hypobromite after continuous gas dialytic separation of ammonia from the sample solution.
APA, Harvard, Vancouver, ISO, and other styles
8

Bodiroga, Milanka, and Jasminka Ognjanovic. "Determination of peracetic acid and hydrogen peroxide in the mixture." Vojnosanitetski pregled 59, no. 3 (2002): 277–79. http://dx.doi.org/10.2298/vsp0203277b.

Full text
Abstract:
Iodometric and permanganometric titrations were used for determination of peracetic acid and hydrogen peroxide (H2O2) in the mixture. Two procedures were described and compared. Titrations could be done in only one vessel, in the same reaction mixture, when iodometric titration of peracetic acid was continued after the permanganometric titration of H2O2, (procedure A). Peracetic acid and H2O2, as oxidizing agents, reacted with potassium iodide in an acid medium, evolving iodine. This reaction was used for the quantitative iodometric determination of total peroxide in procedure B. H2O2 reacted with potassium permanganate in acid medium, but peracetic acid did not react under the same conditions. That made possible the selective permanganometric determination of H2O2 in the presence of peracetic acid. The procedure B was performed in two titration vessels (KV=3.4% for peracetic acid, 0.6% for H2O2). The procedure A for iodometric determination of peracetic acid in one titration vessel after permanganometric titration of H2O2 was recommended (KV=2,5% for peracetic acid, 0,45% for H2O2).
APA, Harvard, Vancouver, ISO, and other styles
9

Ikeshoji, Tamio. "Titrations by Temperature Difference Electrode: Entropy Titrations." Bulletin of the Chemical Society of Japan 59, no. 6 (June 1986): 2023–25. http://dx.doi.org/10.1246/bcsj.59.2023.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bond, T. Christopher, Jaime Rubin, Steven X. Wang, and Alex Yang. "More Frequent Hemoglobin Measurements and More Frequent Epoetin Alfa Titrations Are Both Associated with Increased Epoetin Alfa Dose but Not More Time in Target Hemoglobin Range,." Blood 118, no. 21 (November 18, 2011): 4194. http://dx.doi.org/10.1182/blood.v118.21.4194.4194.

Full text
Abstract:
Abstract Abstract 4194 For the past 20 years, management of hemoglobin (Hb) level via erythropoiesis-stimulating agents (ESAs), such as epoetin alfa (EPO) has been the norm in the care of end-stage renal disease (ESRD) patients. Recently, questions about patient safety and new economic bundling rules have brought renewed focus on appropriate Hb targets and how they relate to the use of EPO. Important issues related to Hb control are the frequency of Hb measurements, Hb value, the frequency of changes in EPO dose (titrations), and total EPO dose. Current practice aims to achieve greater control of Hb by more frequent measurement and finer EPO dose titrations. No studies have definitively shown that levels of titration and measurement frequency lead to better clinical outcomes or more efficient use of EPO. One large retrospective analysis found increasing Hb measurements and EPO dose titration frequency decreased patient variability around the facility-level Hb mean (Khan et al, 2011). However, a second study found that frequent titrations have been shown to be the most important driver of Hb cycling—potentially dangerous large fluctuations in Hb levels (Fishbane and Berns, 2005). The issue remains controversial. We conducted a retrospective database analysis in order to quantify the frequency of Hb dose titrations and measurements, and to evaluate their relationship to ESA dose and the ability to keep patients within a Hb range of 10–12 g/dL. Data from prevalent (≥ 120 days), adult (>18 years old) hemodialysis patients dialyzing at DaVita dialysis clinics ≥ 3 times per week between January 1, 2009 and December 31, 2010 were included. For every session, patients' stable dosing periods were defined as any series of at least 3 doses during which the dose did not change more than 10% from first dose in the series. Dose holds were defined as ≥ 3 consecutive sessions with 0 EPO dose. An EPO dose of 0 lasting <3 consecutive sessions was ignored when identifying stable periods and holds. Doses not categorized as part of a stable period or a dose hold were considered transition periods. A dose titration was defined as a difference of > 10% between any of the following: the mean dose of 2 consecutive stable periods; the mean dose of stable period and next/previous dose in transition period; and 2 consecutive doses within a transition period. Transitions involving a dose hold were counted as 1 titration if the patient then returned to a dose within 10% of the mean of the prior period; or 2 titrations otherwise. Similar rules were developed for the minority of patients who received EPO once or twice per week. Correlations among measures (titrations/patient-month and Hb measurements/patient-month with mean monthly EPO dose and time with Hb in range) were assessed using Pearson product-moment correlation and linear regression (adjusted for racial composition, percentage of dialysis vascular access types, percentage with comorbidities, and mean age, vintage, and BMI) at the physician and the facility levels. Time in range was defined as total patient time in range/total patient-time. Facility level analyses were weighted by facility load (minimum of 300 patient-months) and are reported here. Information from 81,464 patients at 1,336 facilities was assessed. The mean number of titrations was 13.6 ± 2.83 (mean ± SD) per patient per year and the mean number of Hb measurements was 36.3 ± 8.24 per patient per year. The mean percent of patient-time in range among these facilities was 57.1% ± 5.8%. At the facility level, after adjustment for case mix factors (mean age, vintage, and BMI at facility, access types, and racial composition) the annual number of dose titrations per patient and Hb measurements per patient were not associated with the percent of patient-months within a 10–12 g/dL Hb range (p=0.12 and p=0.47; respectively). An analysis of ESA utilization showed that an increase of 1 titration per patient at the facility level was associated with an extra 18,000 U (p<0.001) per patient. In this retrospective study of >80,000 US dialysis patients over 2 years, neither increased Hb measurements nor increased EPO titrations were associated with improving patient-time in Hb range. However, increased EPO titrations were associated with significantly increased EPO utilization. Although these associations do not demonstrate causality (or the direction of potential causality), they do underscore the need to assess titration practices. Disclosures: Bond: DaVita Clinical Research: Employment; Affymax Inc: Research presented in this study was paid for by Affymax. Rubin:DaVita Clinical Research: Employment; Affymax: The research presented in this abstract was paid for by Affymax. Wang:DaVita Clinical Research: Employment; Affymax: The research presented in this abstract was paid for by Affymax. Yang:Affymax: Employment.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Titrations"

1

Mashamba, Mulalo Gift. "Process potentiometric sequential injection titrations." Pretoria : [s.n.], 2001. http://upetd.up.ac.za/thesis/available/etd-11212005-093416/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Rajantie, Hanna Katarina. "Electrochemical titrations with dual microband electrodes." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272111.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sohail, Assra. "An investigation into the use of mass for manual and automatic titrations." Thesis, University of Salford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491253.

Full text
Abstract:
The use of constant boiling hydrochloric acid as a primary acidimetric standard has been reviewed and investigated. Although this material was first proposed as a standard in the 1930's, it has not been used extensively. It has been established that, using ground glass joint glassware, constant boiling hydrochloric acid is very easy to prepare. It is also very stable and easy to use. It makes an excellent primary acidimetric standard. It is by far the best strong acid standard.
APA, Harvard, Vancouver, ISO, and other styles
4

Santos, Marcos Alves dos. "Titulações potencio-condutimétricas simultâneas: método, programas para simulação e análise de dados e exemplos reais de aplicação." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/46/46133/tde-08112010-091604/.

Full text
Abstract:
A despeito dos avanços instrumentais, as titulações continuam sendo largamente aplicadas em laboratórios de química analítica. Seu amplo uso está relacionado com a boa exatidão em aplicações bem estabelecidas e freqüente indicação como método de referência (p. ex., farmacopéias), equipamentos simples, comuns e de custo reduzido, consumo moderado de tempo e de reagentes. Entre as técnicas de titulação, destacam-se as potenciométricas (TP), empregadas universalmente para a quantificação de um ou mais componentes ácidos ou básicos em soluções aquosas ou não aquosas, possibilitando ainda determinar as constantes de dissociação de ácidos e de protonação de bases. Na análise de dados de TP são, via de regra, empregados os métodos clássicos (derivadas), porém, para sistemas compreendendo componentes multiprotonáveis, as inflexões das curvas de titulação deixam ser nítidas, especialmente em baixas concentrações. Nestas condições desfavoráveis, ainda assim podem-se obter resultados satisfatórios recorrendo a métodos de linearização das curvas ou analisando os dados por regressão não linear (RNL), facilmente implementáveis em computadores, hoje disseminados nos laboratórios. Outra técnica clássica para acompanhamento de titulações é a condutimétrica (TC), menos utilizada que a TP nos dias atuais, salvo para ácidos ou bases muito fracas, servindo para prover dados complementares em estudos de formação de complexos ou na caracterização de amostras ambientais. Tipicamente os pontos estequiométricos coincidem com a intersecção de segmentos de reta. Para amostras muito diluídas, com sistemas multipróticos ou com elevada concentração de eletrólitos em relação às espécies tituladas, a interpretação gráfica fica dificultada e a precisão decai. Pesquisas recentes mostraram que é possível aproveitar informações obtidas por TP para alimentar modelos de regressão não linear de TC e, assim, obter informações mais completas das amostras estudadas. No presente trabalho, avançou-se nesta linha criando programas computacionais para a análise simultânea de dados obtidos por TC e TP, empregando o método de RNL e minimizando os desvios (ou o quadrado dos desvios) dos dois conjuntos completos de dados para prover caracterização mais completa das amostras e melhoria na precisão dos resultados. Um programa de simulação de dados de TC e TP das mais diversas combinações e concentrações de sistemas ácido-base, com recursos para acrescentar erros aleatórios às variáveis simuladas, foi também desenvolvido. Permitiu verificar a validade e potencialidade do método da TPC-RNL e aperfeiçoar o programa de análise simultânea de dados. O programa de TPC-RNL foi aplicado inicialmente à re-avaliação de dados de titulações de água de chuva anteriormente coletadas e analisadas por outro colaborador do grupo. Como exemplo de aplicação original a amostras reais difíceis tanto para a TC como a TP isoladamente, determinou-se, por TPC, baixas concentrações de ácidos orgânicos de baixo peso molecular em amostras obtidas do produto de oxidação acelerada do biodiesel. Os resultados se mostraram compatíveis com os obtidos por outro pesquisador que recorreu à eletroforese capilar, sendo que o pH, a condutividade e a força iônica das amostras também foi reproduzida pelo programa Peak Master alimentado com as concentrações ajustadas por RNL
Despite all the advances in instrumental techniques, titrations are still widely applied in analytical chemistry laboratories. Its widespread use is associated with good accuracy, well established applications, simple, readily available and low cost equipment, moderate consumption of time and reagents and frequent indication as a reference method (eg., Pharmacopoeias). Potentiometric titrations (PT) outstands among other techniques, being universally used for the quantification of one or more basic or acidic components in aqueous or non aqueous samples and enabling further determination of the dissociation constants of acids and bases. Data analysis of PT with the glass electrode is typically done by finding the inflections of the curves with help of simple derivatives. However, PT curves of systems with multiprotonable components, specially at very low concentrations, fail to show sharp inflections. Under such unfavorable conditions, satisfactory results can still be obtained by using curve linearization methods or nonlinear regression (NLR) methods, now at the reach of every laboratory computer. Another classic technique for following titrations is conductivity (CT), less used routinely than PT nowadays except for very weak acids or bases, but still valuable as a complementary technique in equilibrium studies of complex formation or for the characterization of environmental samples. The stoichiometric points of simple CTs are found at the intersection of line segments. For very dilute samples or for multiprotic systems or with high concentrations of electrolytes compared to the species to be titrated, the graphical interpretation becomes difficult and the accuracy declines. Recent research has shown that it is possible to harness information obtained by PT to render non-linear regression models of CT solvable, thus extracting more complete information of the samples. This dissertation is devoted to the development and evaluation of software for the simultaneous analysis of data from CT and PT gathered together in the laboratory or by simulation, using the method of NLR with minimization of the weighted deviations (or their squares) of the two full data sets to provide more complete characterization of the samples and to improve the precision of the results. A simulation program for generating CT and PT curves for freely combined acid-base systems over a wide concentration range, with features to add random errors to the simulated variables was also developed. The simulator was used to evaluate the validity and potentiality of the PCTNLR method and improve the software of simultaneous data analysis. The program of PCT-NLR was applied firstly to the re-evaluation of data from titrations of rainwater collected and analyzed previously by another contributor to the group. As an original application example to real samples that are difficult for CT or PT separately, low concentrations of organic acids of low molecular weight were determined by PCT-NLR in samples from accelerated biodiesel oxidation tests. The results were consistent with those obtained by another researcher who used the capillary electrophoresis. The pH, ionic strength and conductivity of the samples were also reproduced by the program Peak Master using concentrations adjusted by NLR
APA, Harvard, Vancouver, ISO, and other styles
5

Hill, Gordon Craig. "DNA binding studies of antitumor antibiotics and antitumor anthracene derivatives: Computer simulations and spectrophotometric titrations." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185221.

Full text
Abstract:
Quinocarcin binds to d(ATGCAT)₂ with a preferred direction of 3' and the R configuration at C4 of the drug. A mode of action involving ring opening of the oxazolidine ring to form an iminium ion which can then alkylate the N2 of guanine has been reinforced by the current computer modeling study. The absolute configuration for quinocarcin should be reversed based on the fact that the optical isomer of the structure arbitrarily assigned in the literature forms a much better binding complex to DNA. Anthramycin binds to the 2-amino group of guanine but its mechanism of action proceeds through a neutral imine. The 3' direction is again favored but for this molecule, the preferred configuration is S. This computer modeling study provided a basis for a 2D NMR study which confirmed that anthramycin forms a 3'S adduct when it binds to d(ATGCAT)₂. Bisantrene and R9 are synthetic anthracene derivatives with antitumor activity. Use of UV spectroscopy provided insight into the ability of these compounds to intercalate between the base pairs of double helical DNA. Standard Scatchard plot analysis proved useless in determining the binding parameters. A McGhee-von Hippel equation was able to describe a portion of the data but a smoothing spline function was able to describe the data completely. Naphthyridinomycin studies indicate that it too prefers a covalent adduct in which the direction is 3' and the configuration is R at C7. When the noncovalent drug binds to d(ATGCAT)₂ it may bind with either the C3a face or the C7 face closest to N2 of guanine. Iminium ion mechanisms have been proposed for the binding of naphthyridinomycin to N2 of guanine in the minor groove of DNA and the computer modeling presents evidence to support such mechanisms. Saframycin A binds much better to d(GATGCATC)₂ as a hydroquinone species but the quinone can still bind in the same site. The 3' direction is clearly preferred with the R configuration at C7. The hydrogen bonding network of the hydroquinone is conserved in the noncovalent, iminium ion, and covalent 3'R models after 32 ps of dynamics. Iminium ion mechanisms have been proposed for the binding of saframycin A to N2 of guanine in the minor groove of DNA and the computer modeling presents evidence to support such mechanisms.
APA, Harvard, Vancouver, ISO, and other styles
6

McGrath, Jacqueline. "Advances in Supramolecular Catalysis: Studies of Bifurcated Hamilton Receptors." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/19691.

Full text
Abstract:
Bidentate ligands are a commonly used class of ligands in catalysis that generate highly-active and selective catalysts. Such bidentate ligands, however, often suffer from synthetic challenges, which can be alleviated by the use of simpler monodentate ligands that assemble through non-covalent interactions to mimic the structure of bidentate ligands at the metal center. To produce a strongly assembled catalyst complex, the Hamilton receptor motif was utilized. Hamilton receptors form six hydrogen bonds with complementary guests and have binding affinities for barbiturates of up to 104 M-1 in CDCl3. Complete bifurcation of the Hamilton scaffold produces a modular ligand structure that allows for modification of either end of the supramolecular ligand structure. Similarly, the barbiturate guest can be synthetically altered creating both chiral guests and guests with differing amounts of steric bulk. Both experimental titration data and density functional theory calculations show that steric bulk discourages binding of the guest while a pre-organized host encourages guest inclusion. Electronic effects on the bifurcated Hamilton system were studied by varying the electron donating or withdrawing ability of the benzamide moiety on the host molecule. Electron withdrawing moieties produce more acidic amide hydrogens on the host which are able to participate in stronger hydrogen bonds with the guest resulting in a stronger host-guest complex. The effects of substitutions on the barbiturate guest were examined as well, and increased steric bulk on the guest resulted in decreased affinities with the host. The bifurcated Hamilton receptor ligands were examined in the palladium-catalyzed Heck reaction of iodobenzene with butyl acrylate. Pd2(OAc)4 was used as a control and all reaction yields with the diphenylphosphine ligand-stabilized Pd were greater than or equal to those obtained with Pd2(OAc)4 alone. The reaction rates did not correlate with the determined binding constants, suggesting that phosphine substitution on the guest plays a larger role than affinity of the complex for the guest. Reaction temperatures were varied, and at lower temperatures the yields increased implying that the strength of the hydrogen bonds between the metal complex and the guest does play a secondary role in the catalysis. This dissertation includes previously published co-authored material.
APA, Harvard, Vancouver, ISO, and other styles
7

Sundman, Ola. "Cation adsorption properties of substituted kraft fibres : an experimental and thermodynamic modelling study." Doctoral thesis, Umeå universitet, Kemi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1891.

Full text
Abstract:
Acid/base and metal ion adsorption properties have been investigated for a range of chemically modified bleached Kraft fibre materials (pulps). The studies were performed via potentiometric titrations, Flame Atomic Absorbtion (and Emission) Spectroscopy, Inductively Coupled Plasma Optical Emission Spectroscopy and Extended X-ray Absorbtion Fine Structure measurements. As a result of a chemical modification procedure, the total concentration of acidic carboxylate groups in the fibre materials ranged between 43 and 590 μmol/g. The preferable surface potential model for modelling the ionic strength dependent acid/base properties of fibre materials with low charge densities, i.e. unmodified fully bleached Kraft fibre materials, was found to be the Basic Stern Model. For fibre materials with high total charge, ≳100 μmol/g, this model resulted in poor fits to data, and for such materials a number of Constant Capacitance Models, one at each ionic strength, must be recommended. With respect to metal ion adsorption, the results have indicated that the unspecific Donnan theory could correctly model the simultaneous adsorption of several metal ions, i.e. K+, Na+, Mg2+, Ca2+ and Cu2+, provided that the salt concentration in the fibre suspension is low. In suspensions of high salt concentration it was, however, found that this very same model strongly underestimated the adsorption of Ca2+ and Cu2+. Here, the Donnan model had to be complemented by specific ion exchange equilibria. These results were corroborated by spectroscopic evidence of specific interactions between Cu2+-ions and fibres. The spectroscopic indication of a complex formed between two fibre surface carboxylate groups and one Cu2+-ion, agree with the specific ion exchange model. It was therefore concluded that specific metal ionfibre interactions cannot be neglected, especially at high salt concentrations. The interactions occurring between the polycation GaO4Al12(OH)24(H2O)127+ and fibre materials were studied by both adsorption and spectroscopic measurements. These indicate that GaO4Al12(OH)24(H2O)127+ is surprisingly stable in fibre suspensions and that intact GaO4Al12(OH)24(H2O)127+- ions are strongly adsorbed onto the fibres. Also for this ion, specific interactions has to be considered, since the strong adsorption registered was too strong to be explained by Donnan equilibria. In the thesis, the stochiometric composition and an equilibrium constant characterising these interactions is presented.
APA, Harvard, Vancouver, ISO, and other styles
8

Halliday, Colin George. "Aspects of photometric titration." Thesis, Queen's University Belfast, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329513.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bowen, Martina E. "I. Use of 9-methylfluorene as an indicator for organometallic titrations II. Synthesis of a branched polyethylene glycol linker for peptide ligands III. Synthesis of a linker for peptide ligands and a study of its pH sensitivity." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/290107.

Full text
Abstract:
This work details the synthesis of some useful organic molecules: (I) 9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint. The highly basic reagents sec-butyllithium and tert -butyllithium can be titrated in ether solution, where the color of the deprotonated indicator is yellow. (II) A branched, polyethylene glycol based linker for peptide ligands was designed and synthesized. The linker needed to be water soluble, to be stable under both acidic and basic conditions, to have amine and carboxyl termini for use in solid phase peptide synthesis, and to have an attachment site for a fluorescent marker. The polyethylene glycol linker was designed with a carboxyl terminus and two amine termini that can be differentially protected to facilitate selective deprotection and reaction with three peptides or two peptides and a fluorescent tag. (III) A molecule containing a linear polyethylene glycol linker with beta-alkoxyamide moiety was synthesized and its pH stability determined using an HPLC method. Stability was assayed in 5 mM buffers at pH 4, 7, and 9 over 24 hours. No decomposition in these solutions was detected. The linker was then subjected to 10 mM acid or base solution and analyzed over 24 hours. Again, no decomposition was observed.
APA, Harvard, Vancouver, ISO, and other styles
10

Fardel, Julien. "Application of thermometric titration methods /." Sion, 2008. http://doc.rero.ch/record/12817?ln=fr.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Titrations"

1

Potentiometry and potentiometric titrations. Malabar, Fla: Krieger Pub. Co., 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Polster, Jürgen. Spectrometric titrations: Analysis of chemical equilibria. New York, NY, USA: VCH Publishers, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hansen, Lee D., Mark K. Transtrum, and Colette F. Quinn. Titration Calorimetry. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78250-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Knapp, George P. Automated oxygen titration and salinity determination. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

M, Talmud M., ed. Selektivnoe kompleksonometricheskoe titrovanie. Moskva: Nauka, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wieland, G. Water determination by Karl Fischer titration: Theory and applications. Darmstadt: Git Verlag, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Selwyn, Lyndsie. Analysis of the chloride ion concentration in aqueous solutions by potentiometric titration. Ottawa, Ont: Canadian Conservation Institute, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Elkordy, Amal Ali. Applications of calorimetry in a wide context: Differential scanning calorimetry, isothermal titration calorimetry and microcalorimetry. Rijeka, Croatia: Intech, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Mwakibete, Hezron Kapaga Ozanne. Electrochemical and isothermal titration calorimetry studies associated with polymer-micelle complexes and surfactant/cyclodextrin inclusion complexes. Salford: University of Salford, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Barringer, Julia L. Theoretical considerations and a simple method for measuring alkalinity and acidity in low-pH waters by Gran titration. West Trenton, N.J: U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Titrations"

1

Scholz, Fritz, and Heike Kahlert. "Titrations." In Chemical Equilibria in Analytical Chemistry, 169–242. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17180-3_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Burgot, Jean-Louis. "Complexometry II: Titrations with EDTA." In Ionic Equilibria in Analytical Chemistry, 513–23. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-8382-4_28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Burgot, Jean-Louis. "Some General Points Concerning Titrations." In Ionic Equilibria in Analytical Chemistry, 119–25. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-8382-4_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Burgot, Jean-Louis. "Acid–Base Titrations: Further Theoretical Studies." In Ionic Equilibria in Analytical Chemistry, 157–67. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-8382-4_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Virgili, M., D. Pietrobon, G. Venturoli, and B. A. Melandri. "Single and Double Inhibitor Titrations of Bacterial Photophosphorylation." In Progress in Photosynthesis Research, 193–200. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-0516-5_42.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Burgot, Jean-Louis. "Complexometry III: Metal Cation Indicators and Types of EDTA Titrations." In Ionic Equilibria in Analytical Chemistry, 525–41. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-8382-4_29.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Noctor, Graham, Deborah Rees, and Peter Horton. "Uncoupler Titrations of Energy-Dependent Quenching of Chlorophyll Fluorescence in Chloroplasts." In Current Research in Photosynthesis, 627–30. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0511-5_145.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Neumann, Erzsébet Néher. "Emf Titrations Proposed for the Determination of Certain Transport Numbers [1]." In Advanced Potentiometry, 199–211. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9525-2_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wagner, Clemens, and Dieter Walz. "Analysis of b-Cytochrome Titrations in Terms of Interacting Redox Couples." In Photosynthesis: from Light to Biosphere, 1759–62. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0173-5_414.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Grzybek, Stefan, Frauke Baymann, Karl-Heinz Müller, and Werner Mäntele. "MEH-FIT: A Computer Program for the Analysis of Redox Titrations." In Fifth International Conference on the Spectroscopy of Biological Molecules, 25–26. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1934-4_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Titrations"

1

Sunarsih, Deetje. "ENQUIRY PEDAGOGY IN TEACHING TITRATIONS WITH USING NATURAL INDICATOR." In International Conference on Education 2017. TIIKM, 2017. http://dx.doi.org/10.17501/icedu.2017.3115.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Yendur, O., S. E. Beck, M. S. Xanthopoulos, C. M. Cielo, E. J. Escobar, and I. E. Tapia. "Clinical Utility of Repeated Positive Airway Pressure Titrations in Children with Obstructive Sleep Apnea Syndrome." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a3904.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

de la Calle, Inmaculada, Isela Lavilla, Francisco Javier Pena, Vanesa Romero, and Carlos Bendicho. "SYSTEMATIC DESIGN OF ACID-BASE TITRATIONS FOR UNDERGRADUATE STUDENTS: APPLICATION TO THE RESOLUTION OF A MIXTURE OF TWO AMINO ACIDS." In 12th International Conference on Education and New Learning Technologies. IATED, 2020. http://dx.doi.org/10.21125/edulearn.2020.0955.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bock, Paul E. "ACTIVE SITE-SELECTIVE LABELING OF THROMBIN WITH FLUORESCENCE PROBES USING THI0ESTER DERIVATIVES OF PEPTIDE-CHL0R0METHYL KETONES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644664.

Full text
Abstract:
Active site-directed inactivation of a serine protease with a thioester derivative of a peptide-chloromethyl ketone followed by reaction of the unique thiol group generatedin the presence of hydroxylamine with a fluorophore-iodoacetamide hasbeen investigated as a new method for covalent incorporation of extrinsic fluorescence probes into the active sites of blood coagulation proteases. The specificity of labeling by this method was evaluated by quantitation of the reactions between human thrombin, acetylthioacetyl-D-Phe-Pro-ArgCH2Cl (ATA-FPRCK) and 5-iodoacetamidofluorescein(IAF).ATA-FPRCK was synthesized by reaction of FPRCK with succinimidylacetylthioacetate and purified by chromatography on SP-Sephadex and Sephadex G10. Titrations of the loss of thrombin chromogenic substrate activity with ATA-FPRCK were linear, with end points of 1.1-1.2 mol ATA-FPRCK added/mol active sites, consistent with a reaction stoichiometry of 1 and the ∽90% purity of the compound estimated by reverse-phase HPLC.Inactivation of thrombin wasquantitatively correlated with incorporation of the thioester, with a maximum of 1.04 mol/mol active sites.IAF labeling of ATA-FPR-thrombin inthe presence of 0.1M NH20H yielded a maximu of 0.96 mol IAF incorporated/mol active sites in a reaction accompanied by loss of the thiol group. Incorporation of ATA-FPRCK wasdependent on thefunctional thrombin active site, asdemonstrated by less than 4%thioester or IAF incorporation for the enzyme previously inactivated with FPRCK. I conclude that active site-selective fluorescence labelingcan be achieved by the method described here with the advantage of a wide choice in the properties of theprobe incorporated. In addition, a 2.3-fold difference in fluorescenceintensity was observed for 2,6-ANS derivatives of ATA-FPR-thrombin andATA-D-Phe-Phe-Arg-thrombin, indicating that the spectral properties ofenvironmentally sensitive fluorescence probes are influenced by the structure of the peptide inhibitor.Supported in part by a grant from the American National Red Cross.
APA, Harvard, Vancouver, ISO, and other styles
5

Kaewthai, Ratchanee, Sotarat Thammaboosadee, and Supaporn Kiattisin. "Diabetes dose titration identification model." In 2015 8th Biomedical Engineering International Conference (BMEiCON). IEEE, 2015. http://dx.doi.org/10.1109/bmeicon.2015.7399557.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wang, Chunlin, Ning Huang, Lina Sun, and Guoyi Wen. "A Titration Mechanism Based Congestion Model." In 2018 IEEE International Conference on Software Quality, Reliability and Security Companion (QRS-C). IEEE, 2018. http://dx.doi.org/10.1109/qrs-c.2018.00089.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Verner, Igor M., and Leonid B. Revzin. "Towards Automation of Manual Operations in a High School Chemistry Laboratory." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59037.

Full text
Abstract:
This paper proposes a learning environment in which manual operations of school chemistry laboratory experiments, such as titration and aliquoting, are automated by means of computer controlled devices. The educational study focuses on characteristics of learning in the automated laboratory environment. Pilot teaching indicated that using automation devices significantly reduces the performance time of titration laboratory work. The students also noted that automated titration experiments are more simple and accurate. Therefore, automation of manual operations in laboratory practice has been found to provide a very positive learning environment.
APA, Harvard, Vancouver, ISO, and other styles
8

Chamberlain, Roger D., Chris Edmiston, and Don Williams. "Automated Titration in a Recirculating Water System." In 2018 International Workshop on Cyber-physical Systems for Smart Water Networks (CySWater). IEEE, 2018. http://dx.doi.org/10.1109/cyswater.2018.00010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gullaian, Martin, and John Lane. "Titration Curve Estimation for Adaptive pH Control." In 1990 American Control Conference. IEEE, 1990. http://dx.doi.org/10.23919/acc.1990.4790971.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Vandeput, S., F. Beckers, B. Verheyden, A. E. Aubert, and S. Van Huffel. "Application of numerical noise titration during autonomic blockade." In 2007 34th Annual Computers in Cardiology Conference. IEEE, 2007. http://dx.doi.org/10.1109/cic.2007.4745538.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Titrations"

1

Kaufman, Myron. Kinetic Titrations. Fort Belvoir, VA: Defense Technical Information Center, October 1987. http://dx.doi.org/10.21236/ada192166.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

DE Levie, Robert. General Expressions for Acid-Base Titrations of Arbitrary Mixtures. Fort Belvoir, VA: Defense Technical Information Center, June 1995. http://dx.doi.org/10.21236/ada296181.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ekechukwu, A. A. Reduction of sample volume and waste generation in acid/base titrations using microelectrodes. Office of Scientific and Technical Information (OSTI), March 1996. http://dx.doi.org/10.2172/268567.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Fergg, F., D. E. Kuehner, H. W. Blanch, and J. M. Prausnitz. Hydrogen-ion titrations of amino acids and proteins in solutions containing concentrated electrolyte. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/10124599.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Engmann, J., H. W. Blanch, and J. M. Prausnitz. Protein-salt binding data from potentiometric titrations of lysozyme in aqueous solutions containing KCl. Office of Scientific and Technical Information (OSTI), March 1997. http://dx.doi.org/10.2172/486115.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hansen, Lance D., David D. Ringelberg, Deborah R. Felt, and Jeffrey D. Davis. Base-Induced 2,4,6-Trinitrotoluene Transformation, Titration Studies. Fort Belvoir, VA: Defense Technical Information Center, August 2001. http://dx.doi.org/10.21236/ada396037.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Lee, Michael S., Freddie R. Salsbury, Brooks III Jr, and Charles L. Constant-pH Molecular Dynamics using Continuous Titration Coordinates. Fort Belvoir, VA: Defense Technical Information Center, August 2004. http://dx.doi.org/10.21236/ada426290.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Rogers, Kayron, Benjamin Roach, Jenn Parikh, Haley Wightman, Ralph Ilgner, Marc Chattin, Cole Hexel, and Joseph {Joe} Giaquinto. New Capability at ORNL: High Precision Uranium Titration. Office of Scientific and Technical Information (OSTI), July 2021. http://dx.doi.org/10.2172/1811394.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cureton, LaShonda T., George Fountzoulas, and John J. La Scala. Molecular Weight Measurement of Biobased Furan Polyamides via Non-Aqueous Potentiometric Titration. Fort Belvoir, VA: Defense Technical Information Center, June 2013. http://dx.doi.org/10.21236/ada586113.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Christensen, Earl, Jack Ferrell, Mariefel V. Olarte, Asanga B. Padmaperuma, and Teresa Lemmon. Acid Number Determination of Pyrolysis Bio-oils using Potentiometric Titration: Laboratory Analytical Procedure (LAP). Office of Scientific and Technical Information (OSTI), March 2016. http://dx.doi.org/10.2172/1241091.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Titrations' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography