The Use of an Automated Device in the Direct Simultaneous Determination of Heavy Metals in Commercial Coca Cola By DPASV
作者:
R. Andruzzi,
A. Trazza,
G. Marrosu,
期刊:
Analytical Letters
(Taylor Available online 1983)
卷期:
Volume 16,
issue 11
页码: 853-865
ISSN:0003-2719
年代: 1983
DOI:10.1080/00032718308065223
出版商: Taylor & Francis Group
关键词: Automated stripping analysis of commercial Coca Cola;Heavy metals in commercial Coca Cola;Differential pulse anodic stripping voltammetry;Long-lasting;sessile-drop mercury electrode
数据来源: Taylor
摘要:
The performance of a polarographic analyser equipped with a long-lasting, sessile-drop mercury electrode is described in the direct, simultaneous determination of heavy metals (cadmium, copper and lead) in some Coca Cola samples (drawn from commercial bottles or tins). The determinations were performed by the differential pulse anodic stripping voltammetric technique using a programmed fully automated sequence (i.e., deposition-stripping-recording). The results obtained (1-3, 6-25 and 1.5-3.3 ppb for cadmium, copper and lead, respectively) as well as those previously obtained in the stripping analysis of some sea-waters and mineral-waters samples suggest that the proposed automated device ensures sufficient sensitivity and accuracy to be employed in the DPASV determination of toxic metals (at trace and subtrace levels) in natural waters and beverages.
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