| 原子荧光法测定黔产刺梨中砷的含量 |
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| 引用本文： | 李慧娟,张松,江帆,肖沛廷.原子荧光法测定黔产刺梨中砷的含量[J].食品研究与开发,2012(3):141-143. |
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| 作者姓名： | 李慧娟 张松 江帆 肖沛廷 |
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| 作者单位： | 贵州师范大学分析测试中心 |
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| 基金项目： | 贵州省科学技术基金项目(黔科合J字LKS[2009]22号) |
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| 摘 要： | 建立刺梨中砷的原子荧光分光光度含量测定方法。采用AF-640型原子荧光光度计、HAF-3型砷空心阴极灯;灯电流为80 mA,负高压270 V,原子化温度200℃,原子化器高度8 mm,载气流量700 mL/min,读数时间20 s,延迟时间5 s。该方法在浓度0.0μg/L～12.0μg/L范围内呈线性关系,R2值为0.999 6,重复性试验结果RSD=2.34%(n=6),平均回收率为102.7%,RSD=2.85%(n=7)。
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| 关 键 词： | 原子荧光 砷 刺梨 |
Determination of Arsenic Content in Rosa Roxburghii by Atomic Fluorescence Spectrophotometric Method |
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| LI Hui-juan,ZHANG Song,JIANG Fan,XIAO Pei-ting.Determination of Arsenic Content in Rosa Roxburghii by Atomic Fluorescence Spectrophotometric Method[J].Food Research and Developent,2012(3):141-143. |
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| Authors: | LI Hui-juan ZHANG Song JIANG Fan XIAO Pei-ting |
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| Affiliation: | (The Analysis and Test Center,Guizhou Normal University,Guiyang 550001,Guizhou,China) |
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| Abstract: | To develop a method for determination of arsenic content in Rosa roxburghii.Tools for measurement: AF-640 atomic fluorescence spectrophotometer with a HAF-3 arsenic hollow cathode lamp.Parameter settings: lamp electric current: 80 mA,negative high voltage: 270 V,atomizing temperature: 200 ℃,height of atomizer: 8 mm,carrier gas flux: 700 mL/min,reading duration: 20 s,delaytime: 5 s.There were linear relationships over the concentration range 0.0 μg/L-12.0 μg/L.The R2 value was 0.999 6.The RSD of repeatability experiment was 2.34 %(n=6).The average recovery was 102.7 %,RSD was 2.85 %(n=7). |
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| Keywords: | atomic fluorescence arsenic Rosa Roxburghii |
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