茶多酚中微量铜的原子吸收光谱分析

Determination of Trace Copper in Tea Polyphenods by Atomic Absorption Spectrondry

叙述了干灰法消化样品后，利用原子吸收光谱仪测定茶多酚中微量铜的方法。该法的回收率在90％～105％之间；对同一样品进行6次平行测定，其相对标准偏差为3．9％；结果可靠，方法简便；可用于实际样品分析。

The content of trace copper in tea polyphenols was detectal by atomic absorption spectrometry with dry-ash digestion of sampel.The recovery was 90%~105%, while the relative standard deviation was 3.9% (n=6). The method is simple, reliable and can be used in the analysis of practical samples.