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Position: Home > Articles > Atomic Fluorescence Spectrometric Determination of Trace Selenium in Chinese Date FOOD SCIENCE 2009,30 (12) 144-146

枣中微量硒的原子荧光光谱法分析

作  者:
张福维;侯冬岩;回瑞华
单  位:
鞍山师范学院化学系
关键词:
枣;硒;原子荧光法
摘  要:
采用原子荧光光谱法对枣中硒的含量进行分析,确定最佳测定条件。结果表明:硒的检出限为0.57ng/ml,线性范围为1.0~32.0ng/ml,回收率为99.0%~106.3%,变异系数小于1.71%。
译  名:
Atomic Fluorescence Spectrometric Determination of Trace Selenium in Chinese Date
作  者:
ZHANG Fu-wei,HOU Dong-yan,HUI Rui-hua(Department of Chemistry,Anshan Normal University,Anshan 114007,China)
关键词:
Chinese date;selenium;atomic fluorescence spectrometry
摘  要:
An atomic fluorescence spectrometric method was developed to determine trace selenium in Chinese date by taking 10% HCl solution as the current-carrying solution,selecting 2.0% potassium borohydride solution to enhance fluorescence intensity,and eliminating the disturbance of Pb2+,Cu2+ and Ag+ by enrichment with mercapto cotton and masking with thiourea-ascorbic acid.Results showed that the linear range and detection limit were 1.0-32.0 ng/ml and 0.57 ng/ml,respectively;the recovery varied from 99.0% to 106.3% and the RSD was lower than 1.71%.

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