不同产地花椒中铁、铜、锰微量元素的测定  

Determination of Trace Elements Iron,Copper and Manganese in Chinese prickly ash of Different Regions

作　　者：陈小芳[1] 唐思群[1] 苟建军[1] 郭茂霞 周仔丽 李华兰[1] 

机构地区：[1]绵阳师范学院化学与化学工程学院,四川绵阳621000

出　　处：《中国调味品》2014年第9期121-122,131,共3页China Condiment

摘　　要：目的：测定不同产地花椒中Fe,Cu,Mn三种微量元素的含量。方法：采用硝酸和高氯酸（4＋1）湿法分解样品,火焰原子吸收光谱法（FAAS）测定。结果：四种花椒中三种微量元素含量存在差异,元素含量均为Fe〉Mn〉Cu,RSD〈8.7%,回收率在93.6%-108.0%。结论：花椒中微量元素含量存在差别,可为进一步探讨花椒的药用价值提供与上述微量元素的关系参考。Obj ective：Determine the content of three kinds of trace elements such as Fe,Cu,Mn in Chinese prickly ash of different regions.Methods：Using nitric acid and perchloric acid （4＋1 ）wet decomposition samples,flame atomic absorption spectrometry （FAAS）.Results：In four kinds of Chinese prickly ash,there are differences among the content of three kinds of trace elements,that is Fe〉Mn〉Cu,RSD〈8.7%,the recoveries are between 93.6% and 108.0%.Conclusion：There are differences among the content of trace elements in Chinese prickly ash,which can provide references for further investigation of the medicinal value of Chinese prickly ash.

关 键 词：原子吸收光谱法 花椒 微量元素 

分 类 号：TS207.3[轻工技术与工程—食品科学]