Ultra trace quantification of chromium(VI) in food and water samples by highly sensitive catalytic adsorptive stripping voltammetry with rubeanic acid

2012 ◽  
Vol 133 (3) ◽  
pp. 1075-1080 ◽  
Author(s):  
Shahryar Abbasi ◽  
Atousa Bahiraei
Keyword(s):  
Water Samples ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Food And Water Samples ◽  
Chromium Vi ◽  
Highly Sensitive ◽  
Rubeanic Acid ◽  
Ultra Trace

Ultra-sensitive quantification of copper in food and water samples by electrochemical adsorptive stripping voltammetry

2013 ◽  
Vol 185 (11) ◽  
pp. 8823-8829 ◽  
Author(s):  
Hamid Goudarziafshar ◽  
Mohsen Nikoorazm ◽  
Sayede Shima Mortazavi ◽  
Shahryar Abbasi ◽  
Abbas Farmany
Keyword(s):  
Water Samples ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Food And Water Samples

Sensitive quantification of trace zinc in water samples by adsorptive stripping voltammetry

2013 ◽  
Vol 69 (2) ◽  
pp. 438-442 ◽  
Author(s):  
Shahryar Abbasi ◽  
Abbas Farmany ◽  
Mahmoud Roushani ◽  
Seyede Shima Mortazavi
Keyword(s):  
Water Samples ◽  
Mineral Water ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Complexing Agent ◽  
Peak Current ◽  
Relative Standard ◽  
Preconcentration Time ◽  
Influence Of Ph

A simple and sensitive adsorptive stripping voltammetry method was developed for determination of Zn using N-nitrozo-N-phenylhydroxylamine (cupferron) as a selective complexing agent. This complex absorbed on the hanging mercury drop electrode and created a sensitive peak current. The peak current and concentration of zinc accorded with a linear relationship in the range of 0.85–320 ng mL−1. The influence of pH and the nature of supporting electrolytes, concentration of ligand, preconcentration time and applied potential were investigated. The relative standard deviation at a concentration level of 50 ng mL−1 was 1.8%. The method was applied to the determination of zinc in city, river and mineral water samples, with satisfactory results.

Determination of Chromium(VI) by Batch Injection Analysis and Adsorptive Stripping Voltammetry

2003 ◽  
Vol 36 (5) ◽  
pp. 955-969 ◽  
Author(s):  
Christopher M. A. Brett ◽  
Olga M. S. Filipe ◽  
C. Susanna Neves
Keyword(s):  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Chromium Vi
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