不同大豆品种中6种矿物质元素的波长色散型X射线荧光光谱法测定  

Determination of six mineral elements in different kinds of soybeans by wavelength dispersive X-ray fluorescence spectrometry

作　　者：陈有才 蒙泓宇 孙亚庆 吴时敏[1,2,3] 蒋晓菲 王强 张志恒 CHEN Youeai1,2 MENG Hongyu1,2 SUN Yaqing1,2 WU Shimin1,2,3, JIANG Xiaofei1,2, WANG Qiang4,5, ZHANG Zhiheng4,5(1. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Key Laboratory of Urban Agriculture （South）, Ministry of Agriculture, Shanghai 200240, China; 3. Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, China; 4. Laboratory of Quality ＆ Safety Risk Assessment for Agro - products （ Hangzhou）, Ministry of Agriculture, Hangzhou 310021, China;5. Institute of Quality and Standard for Agro -products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China)

机构地区：[1]上海交通大学农业与生物学院,上海200240 [2]农业部都市农业(南方)重点实验室,上海200240 [3]上海交通大学陆伯勋食品安全研究中心,上海200240 [4]农业部农产品质量安全风险评估实验室(杭州),杭州310021 [5]浙江省农业科学院农产品质量与标准研究所,杭州310021

出　　处：《中国油脂》2018年第5期135-138,148,共5页China Oils and Fats

基　　金：国家自然科学基金(31471668);农业部农产品质量安全风险评估实验室(杭州)基金(2015FXPG03);上海交通大学"Agri-X"基金(Agri-X2015007)

摘　　要：主要研究了波长色散型X射线荧光光谱法(WDXRF)在测定大豆中矿物质元素的应用。实验采用硼酸垫底压片制样,利用基本参数法(FP)建立标准曲线,测定样品中的矿物素元素含量。同时利用电感耦合等离子体发射光谱法(ICP-AES)进行验证。结果表明:WDXRF对大豆中的Mg、K、Ca、Mn、Cu、Zn 6种矿物质元素含量的检测是快速有效的。建立了大豆中这6种矿物质元素ICP-AES测量值与WDXRF测量值的经验线性模型y=ax+b,且Ca、Mn、Cu、Zn元素模型的相关度较好。The application of wavelength dispersive X - ray fluoreseenee spectrometry （WDXRF） in the determination of mineral elements in soybean was mainly studied. With standard curve established via FP method, WDXRF method was used to determine the mineral content in soybean samples by boric acid bottom press. At the same time, the results were validated by inductively eoupled plasma atomic emission spectrometry （ ICP - AES） method. The results showed that the WDXRF method was fast and effective in determining the contents of six kinds of mineral elements in soybean such as Mg, K, Ca, Mn, Cu and Zn. Therefore, linear model y = ax ＋ b was established about the values obtained by ICP - AES and WDXRF, and the correlations of models in Ca, Mn, Cu and Zn were better.

关 键 词：波长色散型X射线荧光光谱分析法(WDXRF) 大豆 矿物质元素 电感耦合等离子体原子发射光谱(ICP-AES) 

分 类 号：TS222[轻工技术与工程—粮食、油脂及植物蛋白工程] TQ646[轻工技术与工程—食品科学与工程]