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2010•Unpublished venueRequires access

Detervmination of Selenium in Tea by Atomic Fluorescence Spectrometry

HU Xiao-cui

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Abstract

Selenium in six kinds of tea is determined by the hydride generation atomic fluorescence spectrometry.The samples were digested by HNO3-HClO4 (volume ratio=4:1),then the resultant digestion solution was determined with HG-AFS.The relationship between selenium concentration and fluorescence intensity is linear in the range of 0～40.00 μg/L.The linear equation is If=30.964 9C+97.714,and the correlation coefficient R is 0.999 8.The relatively standard deviation was 1.8%(n=6).The recovery of standard addition is 98.4%～102.5%

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What this paper is about

Selenium in six kinds of tea is determined by the hydride generation atomic fluorescence spectrometry.The samples were digested by HNO3-HClO4 (volume ratio=4:1),then the resultant digestion solution was determined with HG-AFS.The relationship between selenium concentration and fluorescence intensity is linear in the range of 0～40.00 μg/L.The linear equation is If=30.964 9C+97.714,and the correlation coefficient R is 0.999 8.The relatively standard deviation was 1.8%(n=6).The recovery of standard addition is 98.4%～102.5%

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Available abstract

Selenium in six kinds of tea is determined by the hydride generation atomic fluorescence spectrometry.The samples were digested by HNO3-HClO4 (volume ratio=4:1),then the resultant digestion solution was determined with HG-AFS.The relationship between selenium concentration and fluorescence intensity is linear in the range of 0～40.00 μg/L.The linear equation is If=30.964 9C+97.714,and the correlation coefficient R is 0.999 8.The relatively standard deviation was 1.8%(n=6).The recovery of standard addition is 98.4%～102.5%

Key concepts: Selenium, Chemistry, Analytical Chemistry (journal), Linear range, Hydride, Fluorescence, Linear relationship, Linear correlation

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