Differential-pulse adsorptive stripping voltammetric determination of tyrosine and histidine at a hanging mercury drop electrode after coupling with diazotized sulphanilic acid

The Analyst ◽  
1991 ◽  
Vol 116 (3) ◽  
pp. 249 ◽  
Author(s):  
Josino C. Moreira ◽  
Arnold G. Fogg
Keyword(s):  
Differential Pulse ◽  
Voltammetric Determination ◽  
Hanging Mercury Drop Electrode ◽  
Sulphanilic Acid ◽  
Mercury Drop Electrode

The voltammetric determination of 4-nitrobiphenyl

1991 ◽  
Vol 56 (3) ◽  
pp. 595-601 ◽  
Author(s):  
Jiří Barek ◽  
Gulamustafa Malik ◽  
Jiří Zima
Keyword(s):  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Hanging Mercury Drop Electrode ◽  
Optimum Conditions ◽  
Mercury Drop Electrode ◽  
Working Electrode ◽  
Pulse Voltammetry ◽  
Unstirred Solution

Optimum conditions were found for the determination of 4-nitrobiphenyl by fast scan differential pulse voltammetry at a hanging mercury drop electrode in the concentration range 1 . 10-5 to 2 . 10-7 mol l-1. A further increase in sensitivity was attained by adsorptive accumulation of this substance on the surface of the working electrode, permitting determination in the concentration range (2 – 10) . 10-8 mol l-1 with one minute accumulation of the substance in unstirred solution or (2 – 10) . 10-9 mol l-1 with three-minute accumulation in stirred solution. Linear scan voltammetry can be used to determine 4-nitrobiphenyl in the concentration range (2 – 10) . 10-9 mol l-1 with five-minute accumulation in stirred solution, with the advantage of a smoother baseline and smaller interference from substances that yield only tensametric peaks.

Differential-pulse voltammetric determination of low μgl−1 cyanide levels using EDTA, Cu(II) and a hanging mercury drop electrode

2000 ◽  
Vol 410 (1-2) ◽  
pp. 135-142 ◽  
Author(s):  
J.M González LaFuente ◽  
E Fernández Martı́nez ◽  
J.A Vicente Pérez ◽  
S Fernández Fernández ◽  
A.J Miranda Ordieres ◽  
...  
Keyword(s):  
Differential Pulse ◽  
Voltammetric Determination ◽  
Hanging Mercury Drop Electrode ◽  
Mercury Drop Electrode

Polarographic and voltammetric determination of 6-mercaptopurine and 6-thioguanine

1986 ◽  
Vol 51 (11) ◽  
pp. 2466-2472 ◽  
Author(s):  
Jiří Barek ◽  
Antonín Berka ◽  
Ludmila Dempírová ◽  
Jiří Zima
Keyword(s):  
Detection Limit ◽  
Differential Pulse Voltammetry ◽  
Detection Limits ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Differential Pulse Polarography ◽  
Hanging Mercury Drop Electrode ◽  
Pulse Polarography ◽  
Pulse Voltammetry

Conditions were found for the determination of 6-mercaptopurine (I) and 6-thioguanine (II) by TAST polarography, differential pulse polarography and fast-scan differential pulse voltammetry at a hanging mercury drop electrode. The detection limits were 10-6, 8 . 10-8, and 6 . 10-8 mol l-1, respectively. A further lowering of the detection limit to 2 . 10-8 mol l-1 was attained by preliminary accumulation of the determined substances at the surface of a hanging mercury drop.

Adsorptive Stripping Voltammetric Determination of Albendazole at a Hanging Mercury Drop Electrode

1999 ◽  
Vol 32 (15) ◽  
pp. 2965-2975 ◽  
Author(s):  
Ali Z. Abu Zuhri ◽  
Amjad I. Hussein ◽  
Mohammad Musmar ◽  
Sami Yaish
Keyword(s):  
Voltammetric Determination ◽  
Hanging Mercury Drop Electrode ◽  
Mercury Drop Electrode
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