Citation: Kang Kang Hu, Wei Xiong Huang, Yu Hua Su, Rong Zong Hu. Simultaneous determination of fluorine and iodine in urine by ion chromatography with electrochemical pretreatment[J]. Chinese Chemical Letters, ;2009, 20(12): 1483-1486. doi: 10.1016/j.cclet.2009.05.030
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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 oxidation-neutralization 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.
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Keywords:
- Fluorine,
- Iodine,
- Urine,
- Electrochemical pretreatment,
- Ion chromatography
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