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| 微波消解-电感耦合等离子体发射光谱法测定大米中铜、锰、铁、锌、钙、镁、钾、钠8 种元素 | |
| 引用本文： | 叶润,刘芳竹,刘剑,崔亚娟,王靖,李东,王竹,门建华,王国栋. 微波消解-电感耦合等离子体发射光谱法测定大米中铜、锰、铁、锌、钙、镁、钾、钠8 种元素[J]. 食品科学, 2014, 35(6): 117-120. DOI: 10.7506/spkx1002-6630-201406024 |
| 作者姓名： | 叶润 刘芳竹 刘剑 崔亚娟 王靖 李东 王竹 门建华 王国栋 |
| 作者单位： | 1.北京市营养源研究所，北京 100069；2.中国疾病预防控制中心营养与食品安全所，北京 100050 |
| 基金项目： | 卫生行业科研专项(201202012);北京市科技新星计划项目(2011059) |
| 摘 要： | 建立微波消解-电感耦合等离子体发射光谱法测定大米中铜、锰、铁、锌、钙、镁、钾、钠8 种元素的方法。样品经微波消解后，直接用电感耦合等离子体-发射光谱仪同时测定上述8 种元素。结果表明：此方法的检出限在0.9～12 μg/L之间，线性相关系数r≥0.999 65；加标回收率在96.7%～104.3%之间，相对标准偏差＜5.0%；对小麦标准物进行测定，结果令人满意。 |
| 关 键 词： | 微波消解 电感耦合等离子体发射光谱 微量元素 大米 |
Determination of Contents of Cu,Mn, Fe,Zn, Ca,Mg, K and Na in Rice Using Microwave Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry |
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| YE Run,LIU Fang-zhu,LIU Jian,CUI Ya-juan,WANG Jing,LI Dong,WANG Zhu,MEN Jian-hua,WANG Guo-dong. Determination of Contents of Cu,Mn, Fe,Zn, Ca,Mg, K and Na in Rice Using Microwave Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry[J]. Food Science, 2014, 35(6): 117-120. DOI: 10.7506/spkx1002-6630-201406024 | |
| Authors: | YE Run LIU Fang-zhu LIU Jian CUI Ya-juan WANG Jing LI Dong WANG Zhu MEN Jian-hua WANG Guo-dong |
| Affiliation: | 1. Beijing Research Institute for Nutritional Resources, Beijing 100069, China;2. National Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China |
| Abstract: | A method was established for the determination of copper, manganese, iron, zinc, potassium, sodium, magnesium and calcium in rice by inductively coupled plasma-optical emission spectrometry (ICP-OES) after microwave digestion. The detection limits of the method varied from 0.9 to 12 μg/L, with a linear correlation coefficient (r) ≥ 0.999 65, a relative standard deviation (RSD) < 5.0%, and the spike recovery rates were in the range from 96.7% to 104.3%. Wheat reference material was satisfactorily determined by the proposed method. Thus, this method is suitable for the determination of nutrient elements in rice. |
| Keywords: | microwave digestion inductively coupled plasma-optical emission spectrometry (ICP-OES) micro-elements rice |
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