Comparison of dissolution procedures for the determination of cadmium and lead in plastics
Comparison of dissolution procedures for the determination of cadmium and lead in plastics
复制标题
测定塑料中镉和铅的溶解方法比较
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
H. Seiler
中科院分区：
文献类型：
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作者：
A. Vollrath;T. Otz;C. Hohl;H. Seiler
研究了微波消解和氧瓶燃烧法测定塑料中镉和铅的方法。与传统的湿法灰化的比较显示出可接受的协议。不同类型的塑料，如聚氯乙烯，聚丙烯，聚乙烯，聚苯乙烯，聚酰胺和聚对苯二甲酸乙二醇酯进行了研究。微波消解的精密度在一个系列内，从一天到一天。用反伏安法对火焰原子吸收光谱法测定的结果进行了验证。总体而言，微波消解以及氧气瓶燃烧是节省时间和成本效益的溶解程序，以监督塑料中的法律的镉限量。
SummaryA microwave digestion procedure and an oxygen flask combustion procedure were developed for the determination of cadmium and lead in plastic materials. A comparison with conventional wet ashing shows acceptable agreement. Different types of plastics such as polyvinylchloride, polypropylene, polyethylene, polystyrene, polyamide, and polyethyleneterephthalate were investigated. The precision of microwave digestion was determined within a series and from day to day. The results obtained by flame atomic absorption spectrometry were verified by measurement with inverse voltammetry. Overall, microwave digestion as well as oxygen flask combustion are time saving and cost-effective dissolution procedures to supervise the legal cadmium limit in plastics.