Determination of lead and cadmium in samples of polv(vinyl chloride) using organic solvents by flame atomic absorption spectrometry
Determination of lead and cadmium in samples of polv(vinyl chloride) using organic solvents by flame atomic absorption spectrometry
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有机溶剂火焰原子吸收光谱法测定聚氯乙烯样品中的铅和镉
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
J. Castillo
中科院分区：
文献类型：
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作者：
M. A. Belarra;J. Anzano;J. Castillo
用有机溶剂处理PVC样品所产生的溶液的火焰雾化是完全可行的。在这项工作中，用有机溶剂处理PVC产生的有机溶液在用丙酮稀释后雾化。这种溶剂与通常用于溶解PVC的溶剂相混，它不会引起聚合物的沉淀，并且通常在火焰中具有良好的性能。将该方法应用于实际PVC样品中铅和镉的测定，并研究了PVC树脂和样品中其他金属存在可能引起的干扰。
SummaryFlame atomization of the solutions resulting from treatment of PVC samples with organic solvents is perfectly feasible. In this work, the organic solutions resulting from treatment of PVC with organic solvents are nebulized, after dilution with acetone. This solvent is miscible with those normally used for dissolving PVC, it does not cause precipitation of the polymer and, in general, gives good performance in the flame. The method is applied to the determination of lead and cadmium in real samples of PVC, and the possible interference arising from the PVC resin and from the presence of other metals in the sample is studied.