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微波消解ICP-MS法检测肉制品中的铅、铬、镉、铝、锰、锡

Food Research and Development(2018)

Cited 3|Views17
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Abstract
建立肉制品中的铅、铬、镉、铝、锰、锡6种元素的电感耦合等离子体质谱分析方法.采用微波消解对样品进行前处理,消化后的样品经电感耦合等离子体质谱(inductively coupled plasma mass spectrometry,ICP-MS)检测,利用内标法进行定量分析.结果表明,6种元素线性范围为0.2μg/L~100μg/L,线性相关系数(R2)均大于0.995;检测限:铅0.02μg/L、铬0.03μg/L、镉0.02μg/L、铝0.01μg/L、锰0.04μg/L、锡0.10μg/L;方法加标回收率均在84.9%~104.2%之间;以重复性考察方法重现性,RSD(n=6)在2.71%~4.38%以内;以精密度考察方法稳定性,RSD(n=6)在2.72%~4.28%以内.此方法简单、快速、准确度高、灵敏度高,可以用于肉制品中6种元素的常规分析检测.
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