OPERATOR-FREE FLOW-INJECTION ANALYZER

被引：23
作者：
PASQUINI, C
DEFARIA, LC
机构：
[1] Instituto de Química – Universidade Estadual de Campinas C.P. 6154, CEP 13081, Campinas, SP
来源：
JOURNAL OF AUTOMATIC CHEMISTRY | 1991年 / 13卷 / 04期
关键词：
D O I：
10.1155/S1463924691000275
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A flow injection analyser has been constructed to allow an operator-free determination of up to 40 samples. Besides the usual FIA apparatus, the analyser includes a home-made sample introduction device made with three electromechanical three-way valves and an auto-sampler from Technicon which has been adapted to be commanded by an external digital signal. The analyser is controlled by a single board SDK-8085 microcomputer. The necessary interface to couple the analyser components to the microcomputer is also described. The analyser was evaluated for a Cr(VI)-FIA determination showing a very good performance with a relative standard deviation for 15 signals from the injection of 100-mu-l of a 1.0 mg.ml-1 standard Cr(VI) solution being equal to 0.5%.
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页码：143 / 146
页数：4
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