Simultaneous determination of fluorine and iodine in urine by ion chromatography with electrochemical pretreatment

A new method for the simultaneous determination of fluorine and iodine in urine by ion chromatography （IC） with electrochemical pretreatment has been developed. The pretreatment was performed in a novel electrochemical oxidationneutralization device （EOND）, in which iodide of the sample was oxidized...

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Bibliographic Details
Published in:Chinese chemical letters 2009-12, Vol.20 (12), p.1483-1486
Main Authors: Hu, Kang Kang, Huang, Wei Xiong, Su, Yu Hua, Hu, Rong Zong
Format: Article
Language:English
Subjects:
Electrochemical pretreatment
Fluorine
Iodine
Ion chromatography
Urine
优化条件
同时测定
回收率
检测限
氟化物
电化学预处理
离子色谱
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Summary:A new method for the simultaneous determination of fluorine and iodine in urine by ion chromatography （IC） with electrochemical pretreatment has been developed. The pretreatment was performed in a novel electrochemical oxidationneutralization device （EOND）, in which iodide of the sample was oxidized to iodate and the alkaline digestion sample solution was neutralized. Under the optimized conditions, the limits of detection （LOD, S/N = 3） were 2.5 μg/L for fluoride and 20 μg/L for iodate, respectively. The recoveries were in the range of 93-102% for fluoride and 86-98% for iodate.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2009.05.030