微波消解-等离子发射光谱法测定藤茶中金属元素含量  

Concentration Determination of Metal Elements in Ampelopsis grossedentata by Multiwave Digestion-ICP Method

作　　者：张世仙[1] 陈珍娥[1] 金茜[1] 

机构地区：[1]遵义师范学院,化学化工学院,黔北特色资源应用研究实验室,遵义563002

出　　处：《食品工业》2015年第2期263-265,共3页The Food Industry

基　　金：贵州省科技厅资助(黔科合J字LKZS[2012]28号);遵义师范学院红色文化资源开发与区域经济研究中心资助(ZE2012009)

摘　　要：为测定藤茶中金属元素,采用微波消解处理样品,应用ICP-AES方法对藤茶中的Ca、Mg、Cd、Cr、Cu、Mn、Ni、Pb和Zn 9种元素进行测定。结果表明,各元素的线性范围较宽,方法的RSD为0.14%-3.45%,加标回收率为90.8%-101.7%,具有较高的灵敏度和准确性。表明藤茶中富含Ca、Mn、Mg、Zn、Cu等元素,而有害金属元素Cr、Pb和Cd已超过限量标准,结果为藤茶深入研究提供科学依据。Concentration determination of metal elements in Ampelopsis grossedentata was studied. Concentration of Ca, Mg, Cd, Cr, Cu, Mn, Ni, Pb and Zn 9 kinds of elements in rattan tea were determined by multiwave heating using ICP-aes method. The results showed that the linear range of each element was wide, and RSD was 0.14%- 3.45%. The recovery rate was between 90.8% and 101.7%, which was accuracy and precise. Ampelopsis grossedentata was abundant of Ca, Mn, Mg, Zn and Cu. Concentration of toxic metal element, Cr, Pb, Cd exceed the limited standards. The experimental results provided scientific data for the further study of rattan tea in-depth.

关 键 词：等离子发射光谱(ICP) 藤茶 金属元素 微波消解法 

分 类 号：O657.31[理学—分析化学] TS272.7[理学—化学]