Microwave Digestion Sample Hydride Generation-Atomic Fluorescence Spectrometry Determines Trace Selenium of Mogroside

Abstract:

0.2000g mogroside sample is digested by 7.0ml nitric acid and 3.0ml hydrogen peroxide, and generated by coprecipitation enrichment hydride - atomic fluorescence spectrometry determines trace selenium in it. Under optimum experiment conditions, a standard curve was produced using selenium standard solution, the linear equation is I_se=2890.6c+0.0012,compared wish the linear relaticnship is not by coprecipitation direct determination of standard series I_se=82.56c+0.0018 Selenium detection sensitivity was increased by 35.01 times,the correlation coefficient of obtained linear regression equation is 0.9996, the detection limit is 0.0012μg/L and the relative standard deviation is 0.76% (n=5). Containing 0.1808μg.g-1 Se Luo Han Shen samples. Based on mogroside sample, add a certain of standard solution to do recovery experiment, the obtained recovery rate is in 95.8%~103.6% and the result is satisfactory.

• Periodical: Applied Mechanics and Materials (Volumes 484-485)
• Pages: 62-65
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.484-485.62
• Online since: January 2014
• Authors: Xiu Jing Zhang
• Keywords: Hydride Generation-Atomic Fluorescence Spectrometry, Mogroside, Selenium

References

[1] Liu Bin, Xu Guifa, Han Wenting and Liu Ruiping: Resistant Starch Content of Mogroside .J. Journal of Shandong University (Medical Version), 47 (1) （2009） 103-105.

[2] Han Wenting, Xu Guifa and Liu Bin: Determination Analysis of Mogroside Blood Sugar Generation Index .J. Journal of Shandong University (Medical Version), 47 (3) (2009) 98-100.

[3] Liu Bin, Xu Guifa, Han Wenting and Zhao Teng: Research of Mogroside to Mouse's Purgation Role . Journal of Shandong University (Medical Version), 47 (2) (2009) 95-98.

[4] TaylorA, BranchS, DayMP. PatriarcacM. WhiteM. AnalAtSPeetrom .J. 24 (4) (2009) 535.

[5] Charhon B, FisherA S. Goodall PS. HindsMW. LancasterS. Shore S. AnarAt Spectrom .J. 23 (12)(2008)1636.

[6] Song Jiying: Molecular Fluorescence Spectrophotometry Determines Trace Selenium in Ginkgo Leaf .J. Chemistry World, (5) (2011) 270-272.

[7] Zhang Guixiang: Molecular Fluorescence Spectrophotometry Determines Trace Selenium in Selenium Salt .J. Salt and Chemical, 36 (3)( 2007) 19-19.

[8] Xu Xuan, Sun Qiwen and Wang Yufeng: Determination to Selenium in Green Tea .J. Guizhou Agricultural Sciences, 38 (9) (2010) 68-69.

[9] EvansE H. DayJA. PalmerC D. SmithC M M. Anal At Spectrom .J. 24 (6): (2009) 711.