TRIPHENYLTETRAZOLIUM CHLORIDE FOR DETERMINATION OF IODATE AND PERIODATE

被引:23
作者
KAMBUROVA, M
机构
[1] Department of Chemistry, Higher Institute of Agriculture
关键词
D O I
10.1016/0039-9140(92)80285-L
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Optimum conditions for complexation in the systems triphenyl-tetrazolium chloride-iodate-iodide-dichlorethane and triphenyltetrazolium chloride-periodate-iodide-dichlorethane were found. The molar absorptivity of the complex was 7.48 x 10(4) 1.mole-1.cm-1 for the iodate, and 9.09 x 10(4) l.mole-1.cm-1 for the periodate. Beer's law is adhered to in the range of 0.04-0.7-mu-g/ml for iodate and 0.02-0.35-mu-g/ml for periodate. The influence of foreign ions was studied. Cr(VI), Hg(II) and S2O3(2-) interfere. The proposed method has been applied to analysis of iodate and periodate in fresh water.
引用
收藏
页码:997 / 1000
页数:4
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