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当前位置: 首页 > 文章 > 湿法消解-原子荧光光谱法测定湘葛一号中的砷、汞、铅 食品科学 2014,35 (4) 151-154
Position: Home > Articles > Determination of Arsenic, Mercury and Lead in Radix Puerariae by Atomic Florescence Spectrophotometry with Wet Digestion FOOD SCIENCE 2014,35 (4) 151-154

湿法消解-原子荧光光谱法测定湘葛一号中的砷、汞、铅

作  者：
叶惠煊;谭舟;刘向前;周斌文;熊力夫
单  位：
长沙市葛根工程技术研究中心;湖南中医药大学药学院;长沙市雨花区日成晟食品添加剂厂
关键词：
湿法消解;原子荧光光谱法;湘葛一号;砷;汞;铅
摘  要：
3批不同采收期湘葛一号样品经硝酸-高氯酸的混合液湿法消解后,用原子荧光光谱法测定As、Hg和Pb的含量。As、Hg和Pb的线性范围分别为0~16.0、0~5.0 ng/mL和0~40.0 ng/mL;相关系数r分别为0.999 9、0.999 0和0.999 7;检出限分别为0.050、0.012μg/L和0.038μg/L(n=11);样品平均回收率分别为98.73%、101.22%和99.43%(n=6)。该法方法简便、准确、精密度好,可用于湘葛一号中As、Hg和Pb的含量的快速测定。
译  名：
Determination of Arsenic, Mercury and Lead in Radix Puerariae by Atomic Florescence Spectrophotometry with Wet Digestion
作  者：
YE Hui-xuan;TAN Zhou;LIU Xiang-qian;ZHOU Bin-wen;XIONG Li-fu;Modernization Laboratory of Traditional Chinese Medicine and Drug, College of Pharmacy, Hunan University of Traditional Chinese Medicine;Ri Cheng Sheng Food Additive Factory in Yuhua District of Changsha;Pueraria Engineering Research Center;
关键词：
wet digestion;;atomic fluorescence spectrophotometry;;Pueraria thomsonii Benth cultivar "Xiangge No.1";;As;;Hg;;Pb
摘  要：
A method for determination of the contents of heavy metals including As, Hg and Pb in 3 batches of Radix Puerariae(Pueraria thomsonii Benth cultivar "Xiangge No.1" grown in Hunan province harvested at different times) was developed using atomic fluorescence spectrophotometry in combination with wet digestion. Samples were wet digested by nitric acid and perchloric acid and then detected by hydride generation atomic florescence spectrophotometry. The linear ranges for As, Hg and Pb were 0-16.0, 0-5.0 and 0-40.0 ng/mL, respectively, with correlation coefficients of 0.999 9, 0.999 0 and 0.999 7, respectively. Their limits of detection were 0.050, 0.012 and 0.038 μg/L(n = 11), respectively. Their recovery rates were 98.73%, 101.22% and 99.43%(n = 6), respectively. This method allows simple, fast and accurate determination of As, Hg and Pb in Radix Puerariae.

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