Study on the Determination of Selenium in Wheat by Atomic Fluorescence Spectrometry

doi:10.7668/hbnxb.2009.S1.051

Abstract

Abstract: Based on national standard method GB/T5009.93 -2003 ,with the standard material of wheat (GSB -2), Shimai 12 and Jifeng 733 for experimental materials,the various influence factors of determining selenium in wheat byAtomic Fluorescence Spectrometry (AFS -230E)were studied.Some shortcomings of determining selenium in agriculturalproducts by GB/T5009.93 -2003 were improved.Rusults showed that the concentration of hydrochloric acid and hydroborationpotassim on the determination of selenium in wheat had some influence but the imoverpr of potassium ferricyanidedid not basically affect results.And determining selenium in wheat was feasible without improver of potassium ferricyanidewith the consistecy of 20 % hydrochloric acid and 1.5 % hydroboration potassim under the pre -treatment of seleniumwan improved to be boiled 20min.The method could obtain the higher accuracy and precision and meet the need of practicalanalysis.

Key words: Atomicfluorescencespectrometry, Wheat, Selenium

CLC Number:

S143

TANGYu-xia, WANGHui-min, LIUQiao-ling, LUYing-hua, WANGLing, SUNShi-you. Study on the Determination of Selenium in Wheat by Atomic Fluorescence Spectrometry[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S1.051.

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