食品科学 ›› 2010, Vol. 31 ›› Issue (10): 247-249.doi: 10.7506/spkx1002-6630-201010053

• 分析检测 • 上一篇    下一篇

氢化物- 原子荧光法测定姬松茸子实体中硒含量

肖 辉1,吴向阳2,*,仰榴青3,张 敏2,闫 舒3,邹 烨2,李 芳1   

  1. 1.江苏大学食品与生物工程学院 2.江苏大学化学化工学院 3.江苏大学药学院
  • 收稿日期:2009-09-07 出版日期:2010-05-15 发布日期:2010-12-29
  • 通讯作者: 吴向阳 E-mail:wuxy@ujs.edu.cn

Determination of Total Selenium in the Fruit Body of Agaricus blazei by Hydride Generation Atomic Fluorescence Spectrometry

XIAO Hui1,WU Xiang-yang2,*,YANG Liu-qing3,ZHANG Min2,YAN Shu3,ZOU Ye2,LI Fang1   

  1. 1. School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;2. School of Chemistry and Chemical
    Engineering, Jiangsu University, Zhenjiang 212013, China;3. School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
  • Received:2009-09-07 Online:2010-05-15 Published:2010-12-29
  • Contact: WU Xiang-yang E-mail:wuxy@ujs.edu.cn

摘要:

建立姬松茸子实体中硒含量的氢化物- 原子荧光光谱测定方法。用硒标准溶液考察载流盐酸体积分数、硼氢化钠质量分数、酸介质浓度对荧光强度的影响。姬松茸子实体经湿法与微波高压消解后,用氢化物原子荧光法测定硒含量。该法线性范围为1.0~10.0ng/mL,检出限为0.002ng/mL,精密度为1.32%~4.11%(n=10),回收率为92.89%~106.49%(n=5)。该法准确、简便、快速,可用于姬松茸子实体中硒含量的测定。

关键词: 姬松茸, 原子荧光,

Abstract:

Hydride generation atomic fluorescence spectrometry was used to develop a rapid and simple method for the determination of total selenium in the fruit body of Agaricus blazei. Either wet digestion or high-pressure microwave assisted digestion was used for sample preparation before hydride generation atomic fluorescence spectrometric analysis. A 1000 μm/mL selenium standard solution was used to examine the effects of the concentration of hydrochloric acid as current carrier, sodium borohydride concentration and the concentration of hydrochloric acid as medium acid on fluorescence intensity. The method exhibited a linear range between 1.0 and 10.0 ng/mL, a limit of detection of 0.002 ng/mL, precision RSDs for 10 replicates ranging between 1.32% and 4.11% and spike recoveries (5 replicates) ranging between 92.89% and 106.49%. The method is simple and accurate, thereby providing a good method for the determination of selenium in the fruit body of Agaricus blazei.

Key words: Agaricus blazei, atomic fluorescence spectrometry, selenium

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