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2000•Journal of Fishery Sciences of ChinaRequires access

A method study on determination of micro-Se by using hydride generation-atomic fluorescence spectrum

Lin-hua Hao, Li Liu, Yuxiu Zhai

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Abstract

A method for determining the content of Se in food, seafood and feed has been studied by using AFS-2201 type double-beam hydride generation-fluorescence spectrum(HG-AFS ).During the preliminary treatment, the samples were digested with a modified method of HNO_(3)-HC1O_(4) wet oxidation. The optimal conditions of all analytical factors were discussed and tested. The detection limit is 0.4 ng/ml, and the recovery rate is 88.4%-98.5%, and the linear range is 0-400 ng/ml. The values of Se content determined in standard samples are in the standard range. The method has many advantages in determining micro-Se in various samples.

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What this paper is about

A method for determining the content of Se in food, seafood and feed has been studied by using AFS-2201 type double-beam hydride generation-fluorescence spectrum(HG-AFS ).During the preliminary treatment, the samples were digested with a modified method of HNO_(3)-HC1O_(4) wet oxidation. The optimal conditions of all analytical factors were discussed and tested. The detection limit is 0.4 ng/ml, and the recovery rate is 88.4%-98.5%, and the linear range is 0-400 ng/ml. The values of Se content determined in standard samples are in the standard range. The method has many advantages in determining micro-Se in various samples.

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Available abstract

A method for determining the content of Se in food, seafood and feed has been studied by using AFS-2201 type double-beam hydride generation-fluorescence spectrum(HG-AFS ).During the preliminary treatment, the samples were digested with a modified method of HNO_(3)-HC1O_(4) wet oxidation. The optimal conditions of all analytical factors were discussed and tested. The detection limit is 0.4 ng/ml, and the recovery rate is 88.4%-98.5%, and the linear range is 0-400 ng/ml. The values of Se content determined in standard samples are in the standard range. The method has many advantages in determining micro-Se in various samples.

Key concepts: Hydride, Detection limit, Analytical Chemistry (journal), Linear range, Chemistry, Fluorescence, Chromatography, Standard addition

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