Borate‐containing background electrolytes to improve CE separation in bare capillaries

2020 ◽  
Vol 41 (12) ◽  
pp. 1073-1080
Author(s):  
Vladislav Dolnik
Keyword(s):  
Background Electrolytes

scholarly journals The role of the 2,7-dinitrozo-1,8-dihydroxynaphthalene-3,6-disulfonic acid reagent in determining the thorium ion (IV)

2021 ◽  
pp. 54-58
Keyword(s):  
Organic Reagent ◽  
Disulfonic Acid ◽  
Acid Base ◽  
Amperometric Titration ◽  
Amperometric Determination ◽  
Half Wave ◽  
Acid Reagent ◽  
Background Electrolytes

The aim is to develop a method for the amperometric determination of thorium (IV) ion with 2,7-dinitroso-1,8-dihydroxynaphthalene-3,6-disulfoxyl reagent. Methods of amperometric determination of thorium by solution of 2,7-dinitrozo-1,8-dihydroxynaphthalene-3,6-disulfonic acid on different acid-base properties of background electrolytes and buffer mixtures are considered. The half-wave potential of new reagent was found by logarithmic analysis equal 0.72 V at pH 2.82, which once again indicates on the irreversibility of the process of electrooxidation of the studied organic reagent in used acid-base medias. The conditions for amperometric titration of thorium are optimized, and the influence of outside accompanying metals on the shape of curves and the results of its determination are investigated.

Electromigration in systems with additives in background electrolytes

1993 ◽  
Vol 648 (1) ◽  
pp. 233-244 ◽  
Author(s):  
Iva Zusková ◽  
Bohuslav Gaš ◽  
Jiří Vacík
Keyword(s):  
Background Electrolytes
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