Log in

Relevant bibliographies by topics / Titrations / Journal articles

To see the other types of publications on this topic, follow the link: Titrations.

Journal articles on the topic 'Titrations'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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

Select a source type:

Consult the top 50 journal articles for your research 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.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

FERNANDEZ-MAESTRE, Roberto. "THE IMPORTANCE OF TEACHING TITRATION CURVES IN ANALYTICAL CHEMISTRY." Periódico Tchê Química 17, no. 34 (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 ul

APA, Harvard, Vancouver, ISO, and other styles

2

Doyle, G., I. Szollosi, T. Segal, and C. Downey. "P041 Audit findings of Bilevel Titrations performed in 2022 at a Public Sleep Laboratory." Sleep Advances 4, Supplement_1 (2023): A50. http://dx.doi.org/10.1093/sleepadvances/zpad035.126.

Full text

Abstract:

Abstract Introduction The aim of this audit was to benchmark and grade outcomes of NIV titrations for chronic hypercapnia as per the NPPV titration task force of the AASM. Methods All NIV studies performed in 2022 were included in the audit. Titration gradings of success were defined as per the NPPV titration task force. Each change in setting was reviewed for consistency with laboratory protocols based on task force guidelines. Results 50 of 72 NIV titrations have been audited to date. Patients were mean age (56.4 years +/-17.6), 59% male, with the following pathophysiology leading to chronic

APA, Harvard, Vancouver, ISO, and other styles

3

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Ayodele, Olufunmilayo D., Hawa O. Olabode, and Tawakalitu Bolarinwa. "The use of plant extracts as indicators in teaching acid-base titrations: Case of Hibiscus sabdariffa (Zobo), Beta vulgaris (Beet root), Hibiscus rosa sinensis and Acalypha wilkesiana." Integrity Journal of Education and Training 4, no. 4 (2020): 53–61. http://dx.doi.org/10.31248/ijet2020.087.

Full text

Abstract:

Acid-base titrations are the main part of volumetric analysis in the secondary school chemistry practical syllabus in Nigeria. Synthetic indicators are generally used in teaching students the procedure and skills required in acid-base titrations. However, some of these synthetic indicators are not readily available, some are toxic and there is a special procedure to be followed in preparing them for use as indicators. Hence there is need to consider the suitability of natural indicators which are more readily available, easy to prepare and ecofriendly compared. Therefore, this study aimed at i

APA, Harvard, Vancouver, ISO, and other styles

5

Gibson, Graham, Alexei A. Neverov, and R. S. Brown. "Potentiometric titration of metal ions in methanol." Canadian Journal of Chemistry 81, no. 6 (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

APA, Harvard, Vancouver, ISO, and other styles

6

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 (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 result

APA, Harvard, Vancouver, ISO, and other styles

7

Nuebel, Matthew, Jonathan G. Leung, Christopher Hughes, and Ian McGrane. "Evaluation of major adverse events of clozapine based on accordance to an international titration guideline." Mental Health Clinician 14, no. 3 (2024): 204–11. http://dx.doi.org/10.9740/mhc.2024.06.204.

Full text

Abstract:

Introduction Clozapine is the only antipsychotic approved for treatment-resistant schizophrenia, but without appropriate monitoring, it can be associated with potentially fatal outcomes. An International Adult Clozapine Titration Guideline categorizes patients into normal or slow metabolizers. Categorization provides clozapine titration schedules and recommends regular c-reactive protein (CRP) and clozapine concentration monitoring to reduce the risk of adverse drug reactions (ADRs). The impact of the guideline on clozapine ADRs has not been evaluated. Methods A retrospective chart review asse

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

APA, Harvard, Vancouver, ISO, and other styles

9

Gwarzo, Dahiru Adamu, Jibrin Sabo Suleiman, and Ibrahim Musa Idriss. "EXTRACTION AND APPLICATION OF SOME NATURAL FLOWER PIGMENTS AS ACID-BASE INDICATORS." FUDMA JOURNAL OF SCIENCES 7, no. 4 (2023): 157–62. http://dx.doi.org/10.33003/fjs-2023-0704-1912.

Full text

Abstract:

In this study, the pigments of Ixora coccinea, Lantana camara, Moringa oleifera, Nerium oleander, and Sensevieria trifasciata were used to identify the natural indicators for acid-base titrations using 0.1% acidified ethanolic solvent. The Potiskum Vetenary, biological gardens of Federal University Gashua and Umar Suleiman College of Education Gashua were used to collect the samples. All three types of acid-base titrations—strong acids against strong bases, strong acids against weak bases, and weak acids against strong bases—were studied. Calculations were made for the indicator's color change

APA, Harvard, Vancouver, ISO, and other styles

10

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Miss.Harshal, Chavan* Prutha Shirodkar A. S. Dhake Dr. A.G.Jadhav. "NATURAL INDICATORS AS ALTERNATIVE TO SYNTHETIC ACID BASE INDICATORS." Indo American Journal of Pharmaceutical Sciences 04, no. 11 (2017): 4078–82. https://doi.org/10.5281/zenodo.1048226.

Full text

Abstract:

In acid-base titrations, indicators are used to show sharp color change at intervals of pH. Natural pigments in plants are highly colored substances and may show color change with variation of pH. An attempt has been made to investigate the indicator activity of flower pigments and to replace synthetic indicators as they have certain disadvantage like chemical pollution, availability problems and high cost. Alcoholic extract of Hibiscus rosasinensis, Calotropis gingantia, Brassica oleracea-capitata, Rosa chinensis, Brassica oleracea-italica, Ixora chinensis, Cantharanthus roseus gives sharp in

APA, Harvard, Vancouver, ISO, and other styles

13

DiMaria, Michelle, Brian Schultz, Jennifer Falvo, et al. "0502 Harmony in the Sleep Lab: A Focus on Recognition of Hypoventilation and Direct Feedback Improves Quality of Pediatric Titrations." Sleep 45, Supplement_1 (2022): A222. http://dx.doi.org/10.1093/sleep/zsac079.499.

Full text

Abstract:

Abstract Introduction Over 350 pediatric polysomnogram titrations (T-PSGs) are performed each year at the Sleep Laboratory at Children’s Hospital of Philadelphia in three locations by 24 different polysomnography technologists (PSGTs) on a diverse patient population, typically performed as outpatient procedures and occasionally at the bedside as inpatients. PSGTs are responsible for titration of continuous or bilevel positive airway pressure based on flow, work of breathing, arousals, and/or gas exchange. PSGTs have varying degrees of experience; thus, maintaining quality of T-PSGs is challeng

APA, Harvard, Vancouver, ISO, and other styles

14

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

15

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 (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

APA, Harvard, Vancouver, ISO, and other styles

16

Vambhurkar, G., A. Jagtap, A. Gavade, et al. "ETHANOLIC EXTRACT OF ARISTOLOCHIA BRACTEOLATA FLOWER AS A NATURAL INDICATOR FOR ACID-BASE TITRATION." INDIAN DRUGS 56, no. 03 (2019): 77–79. http://dx.doi.org/10.53879/id.56.03.11502.

Full text

Abstract:

In acid-base titration or acid-base neutralization reaction the change in color due to change pH of the solution is caused due to a third substance which is termed as acid-base indicator or pH indicator. Every indicator shows different range of colors at different pH ranges. Synthetic indicators have been widely employed as indicators in acid-base titrations; however, due to environmental pollution, availability and cost, natural compounds are best alternates. Natural pigments in plants are highly colored substances and may show sharp color changes with variation in pH. In the present study an

APA, Harvard, Vancouver, ISO, and other styles

17

Ayoub, Muhammad Haris, Shehryar Ahmad, Zia Ul Hassan, et al. "Understanding non-covalent interactions of graphene oxide toward transition metal surfaces and relation of binding constants with titration end points from dynamic light scattering studies." Journal of Applied Physics 133, no. 2 (2023): 025303. http://dx.doi.org/10.1063/5.0134267.

Full text

Abstract:

The understanding of non-covalent binding interactions of graphene oxide toward transition metal surfaces (Fe, Co, Ni, and Cu) was observed by ultraviolet–visible absorption spectroscopy, fluorescence emission spectroscopy, hydrodynamic size, and zeta potential studies through titration experiments. These interactions mainly occur through C=C double bonds of graphene oxide. Iron and cobalt nanoparticles interact strongly as compared to nickel and copper nanoparticles. The obtained Stern–Volmer plots are curved indicating that static and dynamic quenching occur simultaneously in these systems.

APA, Harvard, Vancouver, ISO, and other styles

18

Palvanov, Narbek Sapaevich, and Adolat Farkhadovna Tillayeva. "Electrometric determination of cu (ii) cations, Zn (ii) and Cr (iii) in aqueous, water-non-aqueous and mixed solutions." American Journal Of Biomedical Science & Pharmaceutical Innovation 5, no. 2 (2025): 29–33. https://doi.org/10.37547/ajbspi/volume05issue02-08.

Full text

Abstract:

This work presents the results of the potentiometric determination of aqueous, non-aqueous and mixed solvents of copper (II), zinc (II) and chromium (III) cations: (propanol-2, acetone, methyl ethyl ketone, toluene, carbon tetrachloride, dimethylformamide) and their mixtures with water in a ratio of 1:1 and 1:19 by volume, the ratios of acid-base titrations are given. The quantitative results of the titration on a per kilote basis for the indicated cations Cu2+, Zn2+ and Cr3+ are based on the acidity constants of these cations assessed in the solvent environment specified above. The influence

APA, Harvard, Vancouver, ISO, and other styles

19

Pálla, Tamás, Károly Mazák, Dania Mohammed Alkhazragee, György Tibor Balogh, Béla Noszál, and Arash Mirzahosseini. "Comparison of Orthogonal Determination Methods of Acid/Base Constants with Meta-Analysis." International Journal of Molecular Sciences 25, no. 23 (2024): 12727. http://dx.doi.org/10.3390/ijms252312727.

Full text

Abstract:

The accurate determination of acid/base constants (proton dissociation constants—pKa, or equivalently protonation constants—logK) is essential for the physicochemical characterization of new molecules, especially in drug design and development, as these parameters thoroughly influence the pharmacokinetics and pharmacodynamics of drug action. While pH/potentiometric titration remains the gold standard method for determining acid/base constants, spectroscopic techniques—particularly nuclear magnetic resonance spectroscopy (as NMR/pH titrations)—have emerged as powerful alternatives for specific

APA, Harvard, Vancouver, ISO, and other styles

20

Glidewell, Geoffrey, Nathan Walker, Heidi Roth, Brad Vaughn, Zheng Fan, and Katelyn Bricker. "0494 Sleep Related Respiratory Events on Buprenorphine Compared to Naltrexone." SLEEP 47, Supplement_1 (2024): A212—A213. http://dx.doi.org/10.1093/sleep/zsae067.0494.

Full text

Abstract:

Abstract Introduction Opioid medications are associated with an increased risk of sleep related respiratory events, especially central apneas. However, the potential impact of partial agonists (buprenorphine) and full antagonists (naltrexone) is less well known. In this study we hypothesize that patients using buprenorphine will have a greater prevalence of central apneas and require more frequent use of bilevel PAP therapy than those using naltrexone. Methods We performed a retrospective chart review of patients in a sleep laboratory database identifying patients who were prescribed naltrexon

APA, Harvard, Vancouver, ISO, and other styles

21

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

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Jokic, Anja, Radmila Dzudovic, Ljiljana Jaksic, and Snezana Nikolic-Mandic. "The application of hydrogen-palladium electrode for potentiometric acid-base determinations in tetrahydrofuran." Journal of the Serbian Chemical Society 78, no. 8 (2013): 1203–12. http://dx.doi.org/10.2298/jsc120927018j.

Full text

Abstract:

The application of the hydrogen-palladium electrode (H2/Pd) as the indicator electrode for the determination of relative acidity scale (Es, mV) of tetrahydrofuran (THF) and the potentiometric titrations of acids in this solvent was investigated. The relative acidity scale tetrahydrofuran was determined from the difference half-neutralization potentials of perchloric acid and tetrabutylammonium hydroxide (TBAH), which were measured by using both H2/Pd-SCE and glass-SCE electrode pairs. The experimentally obtained value of Es scale THF with a H2/Pd-SCE electrode pair was 1155 mV, and those obtai

APA, Harvard, Vancouver, ISO, and other styles

23

Cassedanne, Jeanníne Odette, and Hamílcar Freire de Carvalho. "Dosagem de chumbo em pequenas quantidades nos minerais." Anuário do Instituto de Geociências 14 (December 1, 1991): 41–43. http://dx.doi.org/10.11137/1991_0_41-43.

Full text

Abstract:

This study describes a lead volumetric titration in minerals. Complexometric accumulation titrations are used and a previous lead separation as chloride is necessary. In the range of 10 to 50 mg of metal, a precision of 0,5 to 0,04% is reached, with a good reproductibility.

APA, Harvard, Vancouver, ISO, and other styles

24

Elfa, Noor, and Rina Nur Hidayah. "POTENTIAL OF DAYAK ONION SKIN (ELEUTHERINE PALMIFOLIA) EXTRACT AS AN ALTERNATIVE INDICATOR FOR ACID BASE TITRATION PRACTICUM." Quantum: Jurnal Inovasi Pendidikan Sains 15, no. 1 (2024): 68. http://dx.doi.org/10.20527/quantum.v15i1.17192.

Full text

Abstract:

Synthetic indicators such as phenolphthalein are used during acid-base titrations to determine the end point of the titration. These indicators are not environmentally friendly and the price is high. To overcome this, it is necessary to study the potential of natural indicators available in the environment, one of which was Dayak onion skin which has not been utilized after the tubers have been taken as an anti-cancer herbal medicine. The aim of this research was to determine the potential of Dayak onion skin (Eleutherine Palmifolia) as a natural indicator in acid-base titrations. The sampling

APA, Harvard, Vancouver, ISO, and other styles

25

Gabhale, Sanjay D., Ekta Gupta, Mahavir Satishchand Bagrecha, Rehan Saifuddin, Anish Nelson, and Mayank Sharma. "Auto-PAP Titration Efficacy in Obstructive Sleep Apnea: A Single-Center Experience." Journal of Pharmacy and Bioallied Sciences 16, Suppl 1 (2024): S302—S304. http://dx.doi.org/10.4103/jpbs.jpbs_501_23.

Full text

Abstract:

ABSTRACT Introduction: Obstructive sleep apnea, often known as OSA, is a sleep-related breathing disease that, if not treated, can lead to serious disabilities or even death. Continuous positive airway pressure (CPAP) is the therapy technique that is suggested for treating severe and moderate OSA. An auto/manual CPAP titration study can be used to determine the appropriate pressure that must be maintained to treat this condition. The motive of this research is to appraise the effectiveness among OSA patients for the auto-PAP titrations. Methodology: A cross-sectional clinical prospective study

APA, Harvard, Vancouver, ISO, and other styles

26

Prasad, S., V. D. Leite, R. A. C. Santana, and E. A. Medeiros. "Electrometric studies on formation of cerium vanadates as a function of pH." Eclética Química 31, no. 2 (2006): 31–38. http://dx.doi.org/10.1590/s0100-46702006000200005.

Full text

Abstract:

The precise nature of the reaction between nitric acid and sodium ortho-vanadate solutions has been studied by means of electrometric techniques involving potentiometric and conductometric titrations. The well defined inflections and breaks in the titration curves confirm the existence of the anions, pyro-V2O7(4-), meta-VO3- and poly-H2V10O28(4-) corresponding to the ratios of VO4(3-):H+ as 1:1, 1:2 and 1:2.6 in the neighborhood of pH 10.5, 7.4 and 3.6, respectively. The interaction of cerium(III) nitrate with sodium vanadate solutions, at specific pH levels 12.4, 10.5, 7.4 and 3.6 was also st

APA, Harvard, Vancouver, ISO, and other styles

27

Gündüz, Turgut, Esma Kiliç, Güleren Özkan, Muhammed F. Awaad, and Mustafa Tastekin. "Conductimetric and potentiometric investigation of effect of acidity on formation of homoconjugates in acetonitrile solvent." Canadian Journal of Chemistry 68, no. 5 (1990): 674–78. http://dx.doi.org/10.1139/v90-103.

Full text

Abstract:

In the present work, 11 aromatic and nine aliphatic carboxylic acids, namely benzoic, 2-nitrobenzoic, 3-nitrobenzoic, 4-nitrobenzoic, 2,4-dinitrobenzoic, 3,5-dinitrobenzoic, 2-aminobenzoic, 3-aminobenzoic, 4-aminobenzoic, o-phthalic, salicylic, formic, acetic, monochloroacetic, dichloroacetic, trichloroacetic, propionic, n-butyric, caprylic, and myristic acids, were titrated conductimetrically and potentiometrically with triethylamine in acetonitrile solvent, under a nitrogen atmosphere, at 25 °C. Closer investigation of the conductimetric titration curves of these acids showed that the acidit

APA, Harvard, Vancouver, ISO, and other styles

28

JONSEN, JON. "COMPLEMENT TITRATIONS." Acta Pathologica Microbiologica Scandinavica 37, no. 4 (2009): 369–75. http://dx.doi.org/10.1111/j.1699-0463.1955.tb00959.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

TAMMAR, A. R. "pH/Titrations." Biochemical Society Transactions 13, no. 6 (1985): 1253. http://dx.doi.org/10.1042/bst0131253a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Kaufman, Myron. "Kinetic titrations." Journal of the American Chemical Society 111, no. 18 (1989): 6901–5. http://dx.doi.org/10.1021/ja00200a001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Polster, J., H. Lachmann, and D. Thorburn Burns. "Spectrometric titrations." Analytica Chimica Acta 236 (1990): 510–11. http://dx.doi.org/10.1016/s0003-2670(00)83363-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Treadwell, W. D. "Electro-titrations." Journal of the Society of Dyers and Colourists 40, no. 12 (2008): 399–406. http://dx.doi.org/10.1111/j.1478-4408.1924.tb01242.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Zakhari, N. Aziz, and K. Artur Kovar. "Nonaqueous Titration of Halides of Nitrogenous Bases, Using Trifluoromethyl Sulfonic Acid." Journal of AOAC INTERNATIONAL 69, no. 4 (1986): 620–24. http://dx.doi.org/10.1093/jaoac/69.4.620.

Full text

Abstract:

Abstract Trifluoromethyl sulfonic acid in glacial acetic acid has been compared with perchloric acid as a titrant in 4 solvent systems: glacial acetic acid, acetic anhydride, a mixture of both, and acetone. The comparison was limited to the determination of halides of nitrogenous bases with and without the use of mercury(II) acetate reagent. The results of the visual titrations showed that both acids are comparable tit rants. However, trifluoromethyl sulfonic acid proved to be superior to perchloric acid in potentiometric titrations carried out in acetic acid-acetic anhydride mixtures. Moreove

APA, Harvard, Vancouver, ISO, and other styles

34

Qayoom, Amtul, Syed Arif Kazmi, and Saeeda Nadir Ali. "Turmeric Powder as a Natural Heavy Metal Chelating Agent: Surface Characterisation." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 60, no. 1 (2017): 1–8. http://dx.doi.org/10.52763/pjsir.phys.sci.60.1.2017.1.8.

Full text

Abstract:

The present study was conducted to investigate surface properties of turmeric in order to evaluateits detoxification potential and ability to sequester toxic metals ions. Scanning Electron Microscopy (SEM),Energy Dispersion Spectroscopy (EDS), Infra-Red (IR) spectroscopy and potentiometric titrations wereemployed for characterisation of the surface of turmeric powder. Spectroscopic studies revealed that thesurface of turmeric powder was porous mainly composed of polymeric -OH , -NH , -CH2 , -COO and-OH groups of polysaccharides. From potentiometric titrations and modelling of batch titration d

APA, Harvard, Vancouver, ISO, and other styles

35

Bhavya sri Khagga, Srija Ghanukota, and Sumakanth Mogili. "Novel titrimetric method for the determination of rosuvastatin in pure form." World Journal of Biology Pharmacy and Health Sciences 13, no. 2 (2023): 001–4. http://dx.doi.org/10.30574/wjbphs.2023.13.2.0054.

Full text

Abstract:

In this experiment assay of Rosuvastatin was performed by titrimetric method. The titration performed is a complexometric titration. The complexometric titration used is an easy, inexpensive volumetric titration method. This method is based on rection of calcium with a solution of disodium ethylenediaminotetraacetate (EDTA). Complex of calcium and EDTA is formed. Erichrome black Tis used as an indicator in this complexometric titration. At pH 12-13, Erichrome black T changes the color from pink to blue. The appearance blue color is determined to be the endpoint of this experiment. The titratio

APA, Harvard, Vancouver, ISO, and other styles

36

Bhavya, sri Khagga, Ghanukota Srija, and Mogili Sumakanth. "Novel titrimetric method for the determination of rosuvastatin in pure form." World Journal of Biology Pharmacy and Health Sciences 13, no. 2 (2023): 001–4. https://doi.org/10.5281/zenodo.7948477.

Full text

Abstract:

In this experiment assay of Rosuvastatin was performed by titrimetric method. The titration performed is a complexometric titration. The complexometric titration used is an easy, inexpensive volumetric titration method. This method is based on rection of calcium with a solution of disodium ethylenediaminotetraacetate (EDTA). Complex of calcium and EDTA is formed. Erichrome black Tis used as an indicator in this complexometric titration. At pH 12-13, Erichrome black T changes the color from pink to blue. The appearance blue color is determined to be the endpoint of this experiment. The titratio

APA, Harvard, Vancouver, ISO, and other styles

37

Pagariya, R. F. "GREEN CHEMISTRY: ROSELLE’S COROLLA EXTRACT AS A SUBSTITUTE FOR HAZARDOUS INTERNAL INDICATORS IN VOLUMETRIC ANALYSIS." International Journal of Research -GRANTHAALAYAH 7, no. 9 (2019): 118–22. http://dx.doi.org/10.29121/granthaalayah.v7.i9.2019.567.

Full text

Abstract:

Indicators used in acid-base titration show well marked changes of colour in certain intervals of pH. Most of these indicators are organic dyes and are of synthetic origin. Today synthetic indicators are the choice of neutralization titrations. But due to environmental pollution, availability and cost, the search for natural compounds as an acid-base indicator was started. The present work highlights the use of the ethanolic extract of the corolla of Roselle (Hibiscus sabdariffa) as a pH indicator in strong acid-strong base, strong acid weak base, weak acid strong base and weak acid-weak base

APA, Harvard, Vancouver, ISO, and other styles

38

Dr., R. F. Pagariya. "GREEN CHEMISTRY: ROSELLE'S COROLLA EXTRACT AS A SUBSTITUTE FOR HAZARDOUS INTERNAL INDICATORS IN VOLUMETRIC ANALYSIS." International Journal of Research - Granthaalayah 7, no. 9 (2019): 118–22. https://doi.org/10.5281/zenodo.3464396.

Full text

Abstract:

Indicators used in acid-base titration show well marked changes of colour in certain intervals of pH. Most of these indicators are organic dyes and are of synthetic origin. Today synthetic indicators are the choice of neutralization titrations. But due to environmental pollution, availability and cost, the search for natural compounds as an acid-base indicator was started. The present work highlights the use of the ethanolic extract of the corolla of Roselle (Hibiscus sabdariffa) as a pH indicator in strong acid-strong base, strong acid weak base, weak acid strong base and weak acid-weak base

APA, Harvard, Vancouver, ISO, and other styles

39

SUN, Xiao-Bo, Lin LI, Xiu-Xia WANG, and Jin-Pi WANG. "A Universal Model for Titrations and Titration Curves Constructed Using MATLAB." University Chemistry 31, no. 5 (2016): 78–84. http://dx.doi.org/10.3866/pku.dxhx201505015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Brooks, Olivia, Joan C. Y. Ng, and Sarah Ickowicz. "Outpatient Rapid Titration of Slow Release Oral Morphine for the Treatment of Opioid Use Disorder in a Canadian Setting: A Case Series." Journal of Addiction Medicine 17, no. 4 (2023): e240-e245. http://dx.doi.org/10.1097/adm.0000000000001149.

Full text

Abstract:

Introduction In the midst of unprecedented opioid overdose deaths, opioid agonist therapy induction strategies that allow for rapid titration to therapeutic doses for individuals at high risk of overdose are needed. Slow release oral morphine (SROM) is an effective treatment for opioid use disorder; however, current guideline-recommended titration strategies require weeks to achieve therapeutic dose for individuals with high opioid tolerance. Individuals may be lost to care or experience overdose due to ongoing use of unregulated opioids during this time. After years of experience titrating SR

APA, Harvard, Vancouver, ISO, and other styles

41

Golovko, Dmitriy, Virender Sharma, Olga Pavlova, et al. "Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration." Open Chemistry 9, no. 5 (2011): 808–12. http://dx.doi.org/10.2478/s11532-011-0069-8.

Full text

Abstract:

AbstractA new amperometric titration method was developed for quantitative determination of ferrate(VI) (FeVIO42−) in the 7.06×10−5−5.73×10−3 M concentration range. Chromium(III) hydroxide solution was used as the titrant. The diffusion current (Id) had a linear relationship with the concentration of ferrate(VI) and slopes were dependent on the concentration of NaOH. The amperometric titration could detect a lower concentration of ferrate(VI) than could potentiometric and colorimetric titrations. The method was applied successfully to determine concentrations of ferrate(VI), generated electroc

APA, Harvard, Vancouver, ISO, and other styles

42

Trettnak, Wolfgang, and Otto S. Wolfbeis. "Fibre-optical titrations." Fresenius' Zeitschrift für analytische Chemie 326, no. 6 (1987): 547–50. http://dx.doi.org/10.1007/bf00468224.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Al-Ghannam, Sheikha M., Abdalla M. S. Abulkibash, and Abeer M. Al-Olyyan. "Differential Electrolytic Potentiometric Determination of Some Amino Acids in Dosage Forms." Journal of AOAC INTERNATIONAL 87, no. 3 (2004): 671–76. http://dx.doi.org/10.1093/jaoac/87.3.671.

Full text

Abstract:

Abstract The application of direct-current differential electrolytic potentiometry to the nonaqueous titration of amino acids was investigated. The basic character of amino acids in acetic acid was enhanced to permit their direct titration with perchloric acid. A pair of antimony electrodes was used as an indicating system. The shapes of the titration curves obtained were almost symmetrical with sharp peaks. The optimum current density for those titrations was found to be 1–2 μA/cm2. The procedure was applied successfully to the determination of certain amino acids in drug formulations, and th

APA, Harvard, Vancouver, ISO, and other styles

44

Hanifa, Suci Rahma, Ardiansyah Ardiansyah, Neti Afrianis, and Heppy Okmarisa. "Development of Acid-Base Titration Practicum Guide Using Natural Indicators of Butterfly Pea Flowers." Hydrogen: Jurnal Kependidikan Kimia 12, no. 1 (2024): 68. http://dx.doi.org/10.33394/hjkk.v12i1.10813.

Full text

Abstract:

Sustainable Development Goals (SDGs) need to be implemented to create environmentally friendly chemistry learning. This can be done in an acid-base titration experiment using natural indicators of butterfly pea flowers. This research aims to produce a practicum guide for acid-base titrations using natural indicators of butterfly pea flowers that are valid and practicum. The research design uses the ADDIE research design, namely Analysis, Design, Development, Implementation, and Evaluation. The research results showed that butterfly pea flowers can be used as a natural indicator for acid-base t

APA, Harvard, Vancouver, ISO, and other styles

45

Pereira, R. Calvelo, M. Camps Arbestain, M. Vazquez Sueiro, and J. A. Maciá-Agulló. "Assessment of the surface chemistry of wood-derived biochars using wet chemistry, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy." Soil Research 53, no. 7 (2015): 753. http://dx.doi.org/10.1071/sr14194.

Full text

Abstract:

In order to understand the reactivity of biochar in soil, we thoroughly examined the carbonaceous surface of different biochars, paying particular attention to the distribution of oxygen-containing functional groups. Biochar was produced from pine, poplar and willow at two different temperatures (400 and 550°C) and characterised using elemental analysis and wet chemistry (Boehm and potentiometric titrations, cation-exchange capacity (CEC) measurement). In addition, Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses were performed on both untreate

APA, Harvard, Vancouver, ISO, and other styles

46

Boyette, S. M., J. M. Lovett, W. G. Gaboda, and J. A. Soares. "Cell surface and exopolymer characterization of laboratory stabilized activated sludge from a beverage bottling plant." Water Science and Technology 43, no. 6 (2001): 175–84. http://dx.doi.org/10.2166/wst.2001.0369.

Full text

Abstract:

Fermentor-stabilized activated sludge from an industrial beverage bottling plant was grown on three different food sources: normal plant wastewater, plant wastewater containing high sucrose concentrations, and a synthetic glucose-based feed stock. Surface charge, hydrophobicity, and exopolysaccharide composition were measured on the stabilized bacterial flocs. Cell surface charge was measured by electrophoretic mobility, dye exchange titration, and a standard colloid titration, while cell hydrophobicity was determined using the bacterial adhesion to hydrocarbons (BATH) test. Exopolysaccharide

APA, Harvard, Vancouver, ISO, and other styles

47

Prasad, S., R. A. C. Santana, A. R. N. Campos, and V. D. Leite. "Potentiometric and conductometric studies on the system acid-isopolytungstate and the formation of lanthanum tungstates." Eclética Química 32, no. 1 (2007): 71–78. http://dx.doi.org/10.1590/s0100-46702007000100010.

Full text

Abstract:

The stoichiometry of the polyanions formed by the action of nitric acid on sodium tungstate (< 0.01M) has been studied by means of electrometric techniques involving pH-potentiometric and conductometric titrations. The well defined inflections and breaks in the titration curves provide evidence for the existence of the polyanions, para-W12O41(10-) and meta-W12O39(6-) corresponding to the ratio of H+:WO4(2-) as 7:6 and 9:6 in the pH ranges 5.7-6.0 and 3.6-4.1, respectively. The interaction of lanthanum nitrate with sodium tungstate solutions, at specific pH levels 8.0, 5.9 and 4.0 was also s

APA, Harvard, Vancouver, ISO, and other styles

48

Yu, Shuna, Wei Zhao, and Biao Wu. "Quantitative Determination of Anion Binding Strenght with A Tripodal Hexaurea Receptor." Advances in Engineering Technology Research 6, no. 1 (2023): 234. http://dx.doi.org/10.56028/aetr.6.1.234.2023.

Full text

Abstract:

Anions are ubiquitous, and their related activities are closely related to human life and production. Thus, study of anion recognition is significant by understanding the binding affinity and selectivity. The tripodal hexaurea receptor has three flexible arms that can form an interior cavity for anion binding. Yet its anion binding property remains unclear. Here, by taking hexyl chain substituted hexaurea receptor as an example, we quantitatively determined the anion binding affinities by using 1H NMR titrations. The chloride binding affinity was determined by direct titration, and the sulfate

APA, Harvard, Vancouver, ISO, and other styles

49

S., C. LAVALE. "Hot Amperometric Titration for Estimation of Trace Amounts of Lanthanum and Cerium." Journal of Indian Chemical Society Vol. 63, June 1986 (1986): 605–6. https://doi.org/10.5281/zenodo.6271847.

Full text

Abstract:

Post Graduate Chemistry Department, Government College, Betul-460 001 <em>Manuscript received 30 September 1986, revised 8 June 1986, accepted 18 June 1986</em> Trace amounts of La<sup>III</sup> and Cent have been estimated quantitatively with xylenol orange (XO) using hot amperometric titration technique. In hot condition, the increase in reversibility and ease of reduction facilitate the metal-ligand complexation. The titrations have been performed at <em>p</em>H 5.5, <em>µ</em>=0.2 and temp.=70°. The stiochiometric ratio of metal-XO complex is found to be 1 : 1. Many ions donot in

APA, Harvard, Vancouver, ISO, and other styles

50

Chen, Po-chia, Pawel Masiewicz, Kathryn Perez, and Janosch Hennig. "Structure-based screening of binding affinities via small-angle X-ray scattering." IUCrJ 7, no. 4 (2020): 644–55. http://dx.doi.org/10.1107/s2052252520004169.

Full text

Abstract:

Protein–protein and protein–ligand interactions often involve conformational changes or structural rearrangements that can be quantified by solution small-angle X-ray scattering (SAXS). These scattering intensity measurements reveal structural details of the bound complex, the number of species involved and, additionally, the strength of interactions if carried out as a titration. Although a core part of structural biology workflows, SAXS-based titrations are not commonly used in drug discovery contexts. This is because prior knowledge of expected sample requirements, throughput and prediction

APA, Harvard, Vancouver, ISO, and other styles

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!