微波消解-原子荧光光谱法测定山茶油中痕量砷  

Determination of Arsenic in Camellia Oil by Atomic Fluorescence Spectrometry with Microwave Digestion

作　　者：沈佳 冯启 王越 朱妙琴[1] SHEN Jia;FENG Qi;WANG Yue;ZHU Miaoqin(Zhejiang International Studies University,Hangzhou,Zhejiang 310023,China)

机构地区：[1]浙江外国语学院科技学院

出　　处：《中国无机分析化学》2019年第6期6-9,共4页Chinese Journal of Inorganic Analytical Chemistry

基　　金：浙江外国语学院高层次科研资助项目(090500522018)

摘　　要：建立了微波消解-原子荧光光谱法测定山茶油中痕量砷的方法;在多组实验研究的基础上,研究了不同消解酸配比条件下,微波消解方法对测定结果的影响。实验结果表明:微波消解0.3 g茶叶对照品和0.3 g山茶油样品过程中,消解酸为6 mL硝酸+4 mL过氧化氢,消解最完全,回收率最好。山茶油样品加标回收率为92%~102%,相对标准偏差(RSD)为5.1%。方法适用于山茶油中痕量砷的测定。A method for the determination of arsenic in camellia oil by atomic fluorescence spectrometry with microwave digestion was established.Several groups of experiments were tested with different proportions of acid to find the ideal amount of digestion acid.The results showed when the sample is 0.3 g,digestion acid is 6 mL nitric acid and 4 mL hydrogen peroxide,It has the best recovery and can be digested most completely in the microwave digestion method.The sample recovery was 92%-102%and RSD was 5.1%.This method is suitable for the determination of Asin Camellia Oil.

关 键 词：原子荧光光谱法 消解法 砷 油 

分 类 号：O657.31[理学—分析化学] TH744.11[理学—化学]