Method for determining content of organic selenium in selenium-rich vegetables by virtue of inductively coupled plasma mass-spectrometry

• Main Authors: ZHANG RUI, SHI CHAOHUI, LIU YANXIA, WANG YUEHUA, LIU KAIKAI, JIA SHASHA, DONG SHUJIE
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2017
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention belongs to the technical field of analysis and particularly relates to an analysis method for determining the content of organic selenium in selenium-rich vegetables by virtue of inductively coupled plasma mass-spectrometry. According to the method, the content of organic selenium is calculated by determining the total selenium content and the content of inorganic selenium in a sample by virtue of a substraction method. The method has the beneficial effects that the sensitivity is high, the linear range is wide, the detection limit is low, the content of organic selenium is indirectly determined by determining the total selenium content and the content of inorganic selenium according to the determination precision of total selenium and inorganic selenium and an adding standard recovery result, and the determination of the content of organic selenium in the selenium-rich vegetables is met. 本发明属于分析技术领域，具体涉及电感耦合等离子体质谱法测定富硒蔬菜中有机硒含量的分析方法。该方法中有机硒含量采用差减法，通过测定样品中总硒和无机硒含量来计算获得有机硒含量。电感耦合等离子体质谱法测定富硒蔬菜中有机硒含