电感耦合等离子体质谱法测定手机壳套中14种可迁移元素

Determination of 14 migration elements in cell phone cover by inductively coupled plasma mass spectrometry

建立电感耦合等离子体质谱法测定手机壳套中14种可迁移元素含量的方法。样品经人工模拟汗液溶液振荡处理,使14种特定元素迁移至模拟溶液中,然后进行微波消解,采用电感耦合等离子体质谱法对消解液进行测定。14种元素在各自的质量浓度范围内具有良好的线性关系,相关系数均大于0.999,方法检出限为0.004~0.400μg/L。样品加标回收率为88.2%~99.5%,测定结果的相对标准偏差为2.5%~9.3%(n=5)。该方法操作简便,灵敏度高,线性范围广,定量准确,适用于手机壳套中14种可迁移元素含量的测定。

A method of inductively coupled plasma mass spectrometry was established to determine the contents of 14 migration elements in cell phone cover.The sample was oscillation treatment by artificial simulation of sweat solution,the 14 migration element were transferred to the simulated solution,and then microwave digestion was performed and the solution was determined by inductively coupled plasma mass spectrometry.The mass concentration of the 14 elements had a good linear relationship in their respective ranges the correlation coefficients were all more than 0.999,and the detection limits were 0.004-0.400μg/L.The recoveries of standard addition were 88.2%-99.5%,and the relative standard deviation of the determination results was 2.5%-9.3%(n=5).The method is simple,high sensitive,widely linear and accurate,and can be applied in the analysis of the 14 migration element in cell phone cover.