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投稿时间:2020-11-20 修订日期:2020-12-24
投稿时间:2020-11-20 修订日期:2020-12-24
中文摘要: 富硒粮食是产量较大的富硒农产品,受到消费者的喜好。通过原子荧光光谱法(AFS)和石墨炉原子吸收光谱法(GFAAS)分别测定粮食中硒含量。比较这2种常用的硒测定方法,分析影响结果准确度的主要因素、方法的特点及适用条件,为富硒粮食生产监管选择适合分析方法提供参考依据。AFS法的方法检出限为0.2 ug/L,其灵敏度相对较高;GFAAS法的方法检出限为0.6 ug/L,其灵敏度相对较低,但操作较为简捷快速。分别采用这2种方法测定对国家标准物质GBW10045大米中硒含量进行测定,结果准确,这2种方法均适用于富硒粮食的硒含量测定工作。
Abstract:Selenium-rich grain is a selenium-rich agricultural product with large output, which is favored by consumers.Atomic Fluorescence Spectrometry (AFS) and Graphite Furnace Atomic Absorption Spectrometry (GFAAS) were used to determine the selenium content of grains respectively. Compare these two commonly used selenium determination methods, analyze the main factors that affect the accuracy of the results, the characteristics of the method and the applicable conditions, to provide a reference for the selection of suitable analysis methods for selenium-rich food production supervision.The detection limit of the AFS method is 0.2 ug/L, and its sensitivity is relatively high; the detection limit of the GFAAS method is 0.6 ug/L, and its sensitivity is relatively low, but the operation is simple and fast. These two methods were used to determine the selenium content of the national standard material GBW10045 rice, and the results were accurate. Both methods are suitable for the determination of selenium content in selenium-rich grain.
keywords: AFS GFAAS selenium-rich grain selenium
文章编号: 中图分类号: 文献标志码:
基金项目:广西科技基地和人才专项(桂科AD17129008)
作者 | 单位 | |
李鸿 | 广西壮族自治区亚热带作物研究所 | 985228279@qq.com |
蒋越华 | 广西壮族自治区亚热带作物研究所 | 411763251@qq.com |
秦玉燕 | 广西壮族自治区亚热带作物研究所 | 956346090@qq.com |
甘志勇* | 广西壮族自治区亚热带作物研究所 | ganzy75@163.com |
引用文本:
李鸿,蒋越华,秦玉燕,甘志勇.AFS和GFAAS法测定富硒粮食中硒含量的比较研究[J].中国无机分析化学,2021,11(3):89-93.
LI Hong,JIANG Yue-hua,QIN Yu-yan,GAN Zhi-yong.Comparison of AFS and GFAAS for the determination of selenium in selenium-rich grain[J].Chinese Journal of Inorganic Analytical Chemistry,2021,11(3):89-93.
李鸿,蒋越华,秦玉燕,甘志勇.AFS和GFAAS法测定富硒粮食中硒含量的比较研究[J].中国无机分析化学,2021,11(3):89-93.
LI Hong,JIANG Yue-hua,QIN Yu-yan,GAN Zhi-yong.Comparison of AFS and GFAAS for the determination of selenium in selenium-rich grain[J].Chinese Journal of Inorganic Analytical Chemistry,2021,11(3):89-93.