Photokinetic voltammetric method for the determination of thiocyanate

2000 ◽  
Vol 367 (7) ◽  
pp. 649-652 ◽  
Author(s):  
Lijun Li ◽  
Anbao Wang ◽  
Pingang He ◽  
Yuzhi Fang
Keyword(s):  
Voltammetric Method

Interference by Tin in AOAC Dry-Ash Voltammetric Method for Determination of Lead and Cadmium in Canned Foods

1988 ◽  
Vol 71 (4) ◽  
pp. 857-859
Author(s):  
Walter Holak ◽  
John J Specchio
Keyword(s):  
Tartaric Acid ◽  
False Positive ◽  
Supporting Electrolyte ◽  
Canned Food ◽  
Voltammetric Method ◽  
Lead And Cadmium ◽  
Anodic Stripping ◽  
Canned Foods ◽  
Positive Results

Abstract When lead and cadmium were determined in samples of canned food by the AOAC anodic stripping voltammetric method, an interference was observed which was believed to be tin(IV). This interference could cause false positive results for lead and cadmium. The electroactivity of tin(IV) was suppressed by increasing the concentration of tartaric acid in the supporting electrolyte from 0.005M to 0.1M after mixing with an equal volume of sample solution.

Novel photochemical voltammetric method for the determination of traces of iron in tea

1997 ◽  
Vol 354 (1-3) ◽  
pp. 359-363 ◽  
Author(s):  
Zhiliang Jiang ◽  
Xuhong Liu ◽  
Miexiu Zhao ◽  
Weimin Mo
Keyword(s):  
Voltammetric Method
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