Determination of nitrate in palladium electroplating baths with a nitrate-ion selective electrode by precipitation titration or direct potentiometry

1983 ◽  
Vol 314 (6) ◽  
pp. 560-562 ◽  
Author(s):  
M. Gei\ler ◽  
R. Kunze
Keyword(s):  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Nitrate Ion ◽  
Direct Potentiometry

Determination of Oxides of Nitrogen in Combustion Effluents with a Nitrate Ion Selective Electrode

1972 ◽  
Vol 22 (2) ◽  
pp. 119-122 ◽  
Author(s):  
J.N. Driscoll ◽  
A.W. Berger ◽  
J.H. Becker ◽  
J.T. Funkhouser ◽  
J.R. Valentine
Keyword(s):  
Ion Selective Electrode ◽  
Oxides Of Nitrogen ◽  
Selective Electrode ◽  
Nitrate Ion

Determination of sodium with ion-selective electrodes.

1981 ◽  
Vol 27 (8) ◽  
pp. 1435-1438 ◽  
Author(s):  
G B Levy
Keyword(s):  
Whole Blood ◽  
Theoretical Basis ◽  
Protein A ◽  
Ion Selective Electrode ◽  
Flame Photometry ◽  
Ion Selective Electrodes ◽  
Selective Electrode ◽  
Indirect Methods ◽  
Direct Potentiometry

Abstract The advent of ion-selective electrodes made possible the potentiometry of sodium in serum and plasma. These methods were based on dilution of serum, as done in flame photometry, and the results were identical. Analysis of whole blood precludes dilution and so "direct" potentiometry was developed. Results by this technique are variable but tend to compensate for the spurious hyponatremias found by the "indirect" dilution methods due to displacement of volume by lipids and protein. However, there is no unambiguous theoretical basis on which to choose between the various direct ion-selective-electrode techniques and instruments. As an alternative, I propose use of current indirect methods, with numerical correction for the shift in normal sodium values in the presence of abnormal lipid and (or) protein. A table was constructed for making such corrections.

scholarly journals Determination of polythionates in an active crater lake by nitrate ion-selective electrode.

1988 ◽  
Vol 22 (6) ◽  
pp. 249-256 ◽  
Author(s):  
Yoshiko Fujiwara ◽  
Shinji Ohsawa ◽  
Kunihiko Watanuki ◽  
Bokuichiro Takano
Keyword(s):  
Crater Lake ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Nitrate Ion ◽  
Active Crater

scholarly journals ION-SELECTIVE ELECTRODE FOR DETERMINATION OF METFORMIN IN PHARMACEUTICAL PREPARATIONS

2020 ◽  
pp. 124-129
Author(s):  
Геннадий Иванович Мантров ◽  
Мариана Александровна Феофанова ◽  
Егор Максимович Грачев
Keyword(s):  
Pharmaceutical Preparations ◽  
Ion Pair ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Electroactive Materials ◽  
Direct Potentiometry

Описана конструкция и электроаналитические характеристики ионселективного электрода (ИСЭ) для количественного определения метформина. В качестве электродноактивных соединений в ИСЭ были использованы ионные ассоциаты метформина с фосфорновольфрамовой(ФВК), фосфорномолибденовой(ФМК) и кремний вольфрамовой кислотами (КВК). Проведено потенциометрическое определение метформина в фармацевтических препаратах. The construction and electroanalytical characteristics of ion-selective electrode (ISE) for metformin are described. Ion pair of metformin with heteropolyacids were tested as electroactive materials for ionometric sensor controls. The ISE was used for direct potentiometry of metformin.

scholarly journals Studies on a Pb2+ - selective electrode with a macrocyclic liquid membrane: Potentiometric determination of pb2+ ions

2006 ◽  
Vol 71 (12) ◽  
pp. 1345-1352 ◽  
Author(s):  
Marian Isvoranu ◽  
Constantin Luca ◽  
Maria Pleniceanu ◽  
Cezar Spinu
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Liquid Membrane ◽  
Theoretical Data ◽  
Absorption Spectrometry ◽  
Systematic Errors ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Active Complex ◽  
Direct Potentiometry

This paper presents experimental and theoretical data regarding the design, characterization and analytical applications of a non-expensive, liquid-membrane ion-selective electrode for Pb2+ ions. The membrane is a solution of the active complex formed by Pb2+ ions with dibenzo-18-crown-6-ionophore (DB-[18]-C-6) extracted in propylene carbonate (PC). The successful application of the developed electrode for the determination of Pb2+ ions in aqueos solution samples by direct potentiometry and potentiometric titration is presented. For the presented analytical results, there are insignificant systematic errors between the direct potentiometric method with the developed ion-selective electrode and atomic absorption spectrometry. .

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