微波消解-石墨炉原子吸收法测定蜂胶及其制品中的铅___
Determination of lead in propolis and its products by microwave digestiongraphite furnace atomic absorption spectrometry
分类号：
出版年·卷·期（页码）：2009,29 (5):0-0
DOI:
10.16155/j.0254-1793.2017.01.01
-----摘要：-------------------------------------------------------------------------------------------
摘要 目的：建立蜂胶及其制品中铅的新检测方法。方法：样品经微波消解，通过优化基体改进剂及石墨炉升温程序，建立了塞曼扣背景石墨炉原子吸收法测定铅。结果：方法的检出限为0.002 mg·kg-1，定量限为0.007 mg·kg-1；进样精密度为2.2%～3.2%(n=8)；回收率为95.0%～108.0%。结论：本方法简便、准确，可用于蜂胶及其制品中铅的测定。
关键词：微波消解；石墨炉原子吸收法；蜂胶及其制品；铅
-----英文摘要：---------------------------------------------------------------------------------------
Abstract Objective:To establish a new method of determination of lead in propolis and its products.Methods:Samples were digested with microwave digestion system and the method for the determination of lead by graphite furnace atomic absorption spectrometry(GFAAS) was developed with optimizing matrix modifier and GFAAS temp-control program.Results:The detection limit was 0.002 mg·kg-1 and LOQ was 0.007 mg·kg-1;The precision was 2.2%-3.2%(n=8),and the recovery was 95.0%-108.0%.Conclusion:The method is simple and accurate,and can be used for the determination of lead in propolis.
Key words:microwave digestion;GFAAS;propolis and its products;lead
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