Results 71 to 80 of about 22,021 (227)

A polarographic and potentiometric study of metal-ligand equilibria: Instrumentation and investigations of systems with non-reversible electrode reactions [PDF]

open access: yes, 2006
Faculty of Science School of Chemistry 0204045a tspmkwi@hotmail.comNew possibilities in collection of polarographic and potentiometric experimental data in studies of metal–ligand systems by automated instrumental methods, and subsequent treatment ...
Mkwizu, Tumaini Samuel Peter
core  

Potentiometric investigation of acid-base equilibria of two new pyrimidine derivatives in various methanol-water media [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The acid-base properties of 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one (L1) and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-thione (L2) were investigated potentiometrically at an ionic strength of 0.10M(LiCl) in 19.8, 33.6 and 55.9 % (v/v) methanol ...
Kiliç Hasan, Birol Er
doaj   +1 more source

Potentiometric characterisation of cyclodextrin inclusion complexes of local anaesthetics [PDF]

open access: yes, 2011
The complexation of several local anaesthetics by β and γ-cyclodextrins was studied by potentiometry with glass electrode. Tetracaine and dibucaine complexation constants were determined at 25°C in the presence of 0.1 M of NaCl.
Brandariz, Isabel, Iglesias, Emilia
core   +4 more sources

Development of a Potentiometric Sensor Sensitive to Polysorbate 20 [PDF]

open access: yes, 2019
Polyoxyethylated sorbitans (polysorbates) are widely used in the chemical, pharmaceutical, and cosmetic industries, but only quantitative determination is used mainly for chromatographic methods.
Kotok, V. (Valerii)   +4 more
core   +2 more sources

potentiometry

open access: yes
Citation: 'potentiometry' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09127 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms ...
  +4 more sources

Galvanostatic Entrapment of Penicillinase into Polytyramine Films and its Utilization for the Potentiometric Determination of Penicillin

open access: yesSensors, 2010
A sensitive and reliable potentiometric biosensor for determination of penicillin has been developed by exploiting the self-limiting growth of the non-conducting polymer, polytyramine.
Fatma Ismail, Samuel B. Adeloju
doaj   +1 more source

Testing the impact of waste from anaerobic digestion (enriched with an organic component on the quality of agricultural land) [PDF]

open access: yes, 2017
Waste from anaerobic digestion is considered as a mineral fertilizer and it is usually applied to agricultural land. The aim of our attempt was to enrich this waste from anaerobic digestion (digestate) with an organic component (in our case represented ...
Bártková, Magdaléna   +3 more
core  

Voltammetric determination of the critical micellar concentration of surfactants by using a boron doped diamond anode [PDF]

open access: yes, 2010
The electrochemistry of three surfactants has been studied by voltammetry at boron doped diamond (BDD) electrode in sodium sulphate solutions. The electrochemical behaviour of these surfactants is characterized by an oxidation signal (peak or wave ...
Groenen Serrano, Karine   +2 more
core   +2 more sources

Manganese(III) Porphyrin-based Potentiometric Sensors for Diclofenac Assay in Pharmaceutical Preparations

open access: yesSensors, 2010
Two manganese(III) porphyrins: manganese(III) tetraphenylporphyrin chloride and manganese(III)-tetrakis(3-hydroxyphenyl)porphyrin chloride were tested as ionophores for the construction of new diclofenac−selective electrodes.
Eugenia Fagadar-Cosma   +9 more
doaj   +1 more source

Certification of the Mass Concentrations of Ammonium, Chloride, Fluoride, Magnesium, Nitrate, Ortho-Phosphate, Sulfate and of pH and Conductivity in Simulated Rainwater - Certified Reference Material ERM®-CA408 [PDF]

open access: yes, 2010
This report presents the preparation and certification of the simulated rainwater certified reference material ERM-CA408. All the steps required for the production of this water-matrix certified reference material are described in detail, from the ...
DE VOS EVELINE   +4 more
core   +1 more source

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