Results 91 to 100 of about 14,868 (222)

Acid–base titrimetric assay of hydroxyzine dihydrochloride in pharmaceutical samples [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2010
Two simple titrimetric methods have been developed for the determination of hydroxyzine dihydrochloride (HDH) in pure form and in tablets. The principle of the methods are simple acid–base reactions in which the hydrochloride content of the drug was ...
Kanaka¬pura Basavaiah Vinay   +2 more
doaj  

Reaction of 3-Amino-1,2,4-Triazole with Diethyl Phosphite and Triethyl Orthoformate: Acid-Base Properties and Antiosteoporotic Activities of the Products

open access: yesMolecules, 2017
The reaction of diethyl phosphite with triethyl orthoformate and a primary amine followed by hydrolysis is presented, and the reaction was suitable for the preparation of (aminomethylene)bisphosphonates.
Patrycja Miszczyk   +5 more
doaj   +1 more source

Physico-chemical studies of some aminobenzoic acid hydrazide complexes [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The stability constants and related thermodynamic functions characterizing the formation of divalent Ni, Cu, Zn, Cd and Hg complexes with o- and p-aminobenzoic acid hydrazide were determined potentiometrically at different temperatures. The formations of
S. ABD EL HALEEM   +3 more
doaj  

Starch characterization using spectrophotometry and direct potentiometry

open access: yes, 2014
Starch consists of two polymer types; amylose and amylopectine. Their ratio is starch origin-dependent. Triiodide ions bind characteristically to the amylose and amylopectin molecules of the starch.
Regušić, Lidija   +4 more
core  

Backside Calibration Potentiometry:  Ion Activity Measurements with Selective Supported Liquid Membranes by Calibrating from the Inner Side of the Membrane

open access: yes, 2016
In direct potentiometry, the magnitude of the measured potentials is used to determine the composition of the sample. While this places rather formidable demands on the required reproducibility of the associated potential measurements, typically on the ...
Adam Malon (2510152)   +2 more
core   +1 more source

Carbon Paste Electrode Modified Imprinted Zeolite as a Selective Sensor for Creatine Analysis by Potentiometry [PDF]

open access: yes, 2019
Carbon paste electrode modified imprinted zeolite have been developed as a sensor to analyze creatine by potentiometry. Zeolite used in this study was TS-1 type zeolite that was synthesized with mole ratio of TEOS, TBOT, TPAOH, and H2O of 1:0.017:0.24:21.
A Abdulloh   +6 more
core   +1 more source

Enhanced Potentiometry by Metallic Nanoparticles

open access: yes, 2016
Measuring the oxidation–reduction potential (Eh) requires an interface that is not selective toward specific species but exchanges electrons with all redox couples in the solution.
T. Noyhouzer (1917490)   +2 more
core   +1 more source

Resolution of the hemes of hydroxylamine oxidoreductase by redox potentiometry and optical spectroscopy

open access: yes, 1983
Optical spectroscopy combined with redox potentiometry has resolved the hemes of hydroxylamine oxidoreductase into 6 thermodynamically distinct classes.
Christian Larroque   +5 more
core   +1 more source

Non-aqueous titrimetric assay of gabapentin in capsules using perchloric acid as titrant [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2011
Two simple, rapid, accurate and inexpensive methods using visual and potentiometric titrimetric techniques are described for the determination of gabapentin (GBP) in bulk drug as well as in capsules.
SAMEER A.M. ABDULRAHMAN   +1 more
doaj  

Analytical Electrochemistry: Potentiometry

open access: yes
This courseware module is structured for either a lecture presentation or self-study tutorial on analytical potentiometry. The level of presentation spans upper high school to college students.
Gross, Erin M.   +2 more
core  

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