INDIRECT DETERMINATION OF DIETHYLDITHIOCARBAMATE BY ATOMIC-ABSORPTION SPECTROMETRY WITH CONTINUOUS EXTRACTION - APPLICATION TO THE DETERMINATION OF THE FUNGICIDE ZIRAM

被引：15

作者：

DEBLAS, OJ

DEPAZ, JLP

MENDEZ, JH

机构：

[1] Department of Analytical Chemistry, Nutrition and Food Science, University of Salamanca

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1990年 / 5卷 / 08期

关键词：

INDIRECT DETERMINATION; DITHIOCARBAMATE; ZIRAM; FLOW INJECTION ATOMIC ABSORPTION SPECTROMETRY; CONTINUOUS EXTRACTION;

D O I：

10.1039/ja9900500693

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the determination of diethyldithiocarbamate (DDTC) based on the extraction of the complex formed with Cu(II) into isobutyl methyl ketone and subsequent detection of the metal by atomic absorption spectrometry (AAS) has been developed. The variables most strongly influencing the extraction were studied, particularly the pH. A procedure based on a flow injection system, to effect the extraction, was developed, using AAS for detection. A precision of 2.6% and a detection limit of 0.03-mu-mol of DDTC (1.2 X 10(-7) M in the sample) were obtained. The method was applied to the determination of the fungicide ziram, with a precision of 2.6% and a detection limit of 0.01-mu-mol of ziram.

引用

页码：693 / 696

页数：4

共 12 条

[1] DETERMINATION OF NONMETALS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY [J].