电子电气产品聚合物材料中铅、镉元素的测试方法优化

Optimization of the Test Method for Lead and Cadmium in Polymeric Material in Electronic and Electrical Products

电子电气产品的广泛使用使人们更加关注其对环境的影响,欧盟2011/65/EU指令规定了电子电气设备中限制使用的六类有害物质,IEC 62321提供了六类有害物质的检测方法。本文在IEC 62321-5:2013标准的基础上介绍了一种测试聚合物中铅、镉元素含量的干灰化优化方法。使用国家标准物质进行方法确认,结果表明该方法准确度高,精密度、重复性好,检出限低,操作简便,适用于电子电气产品聚合物材料中铅、镉元素的大批量分析,对实验室提高检测效率,控制时间成本有积极意义。

This paper introduces an optimized dry ashing test method for the contents of lead and cadmium element in polymer based on the standard IEC 62321-5：2013. National standard reference is used to proof this method. Finally, the test results show that this method is of high accuracy, high precision, good repeatability, low detection limit, and convenient operation. It is suitable to analyze a great amount samples in a time and has a positive meaning to improve the efficiency of laboratory.