Flow-injection spectrofluorimetric determination of ethylenethiourea

被引：4
|
作者：
Perez-Ruiz, T [1 ]
Martinez-Lozano, C [1 ]
Tomas, V [1 ]
Sanz, A [1 ]
Martin, J [1 ]
机构：
[1] Univ Murcia, Fac Chem, Dept Analyt Chem, E-30071 Murcia, Spain
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1998年 / 362卷 / 04期
关键词：
D O I：
10.1007/s002160051093
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A flow-injection configuration is proposed for the fluorimetric determination of ethylenethiourea. The procedure is based on the inhibitory effect of ethylenethiourea on the oxidation of thiamine to thiochrome by mercury(II). A linear calibration graph was obtained between 0.1 and 2.0 mu g mL(-1), with a sampling rate of 40 samples per hour and a relative standard deviation of about 1.11%. The usefulness of the method was tested for the determination of ethylenethiourea residues in water, milk, potatoes, pear, grape and apple.
引用
收藏
页码：399 / 403
页数：5
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