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Anodic stripping voltammetry for the determination of trace iodide

✍ Scribed by Lu Guanghan; Yang Min; Zheng Qifang; Wang Ailan; Jin Zexiang

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
256 KB
Volume
7
Category
Article
ISSN
1040-0397

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✦ Synopsis

A carbon paste electrode is used for stripping voltammetry of trace iodide in a Britton-Robinson (B-R) buffer containing cetyltrimethyl ammonium bromide (CTMAB). The electrochemical behavior of 12BrR is described. In a solution containing 0.1 pg/mL iodide, the relative standard deviation for ten determinations is 3.3%, the peak height also varies linearly with the concentration of iodide over the range 0.05-0.25 pg/mL, and the detection limit is 0.03 pg/mL. This method has been used for the determination of iodide in table salt samples with 88-104% recovery.

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