| ICP-MS检测奶粉中多元素的干扰研究 |
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| 引用本文： | 王丙涛,颜治,林燕奎,王楼明,李勇,孟令兵.ICP-MS检测奶粉中多元素的干扰研究[J].光谱实验室,2010,27(2):720-723. |
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| 作者姓名： | 王丙涛 颜治 林燕奎 王楼明 李勇 孟令兵 |
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| 作者单位： | 深圳出人境检验检疫局食品检验检疫技术中心,广东省深圳市蛇口工业八路289号,518067 |
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| 基金项目： | 深圳出入境检验检疫局科技项目SZ2009019 |
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| 摘 要： | 研究了电感耦合等离子体质谱法(ICP-MS)检测奶粉中Ca、Fe、Zn、Mn、Cu、Ni、Ti、Al、Ba、Pb、As、Cd、Cr、Sn、Sb、Se、Tl等17种元素和15种稀土元素的干扰情况。通过碰撞反应和动能歧视,优化了仪器检测条件,最大程度的减少了多原子干扰和基体效应,采用多内标校正,有效抑制了分析信号的动态飘移。同时探讨了基质中共存元素P对Ti测定的影响。所有元素的加标回收率在87.8%—105.3%之间,相对标准偏差不大于6.3%。方法简便快捷,精密度好,准确性高,可完全满足奶粉中高含量元素和痕量元素同时检测的需要。
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| 关 键 词： | 奶粉 电感耦合等离子体-质谱法 碰撞反应池 干扰 |
Determination of Elements in Milk Powder by ICP-AES and Disturbance Evaluation |
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| Wang Bing-Tao,Yan Zhi,Lin Yan-Kui,Wang Lou-Ming,Li Yong,Meng Ling-Bing.Determination of Elements in Milk Powder by ICP-AES and Disturbance Evaluation[J].Chinese Journal of Spectroscopy Laboratory,2010,27(2):720-723. |
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| Authors: | Wang Bing-Tao Yan Zhi Lin Yan-Kui Wang Lou-Ming Li Yong Meng Ling-Bing |
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| Institution: | Food Inspection and Quarantine Center;Shenzhen Entry-Exit Inspection and Quarantine Bureau;Shenzhen;Guangdong 518067;P.R.China |
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| Abstract: | An accurate method for determination of Ca,Fe,Zn,Mn,Cu,Ni,Ti,Al,Ba,Pb,As,Cd,Cr,Sn,Sb,Se and Tl in milk powder by inductive couple plasma-mass spectroscopy was developed and the disturbances of fifteen rare earth elements were evaluated.Conditions were optimized,collision/reaction cell technology(CCT) and kinetic energy discrimination(KED) were used to minimize matrix effects and eliminate mass spectroscopy interference,and more internal standard elements calibration were used to compensate the change of sig... |
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| Keywords: | Milk Powder ICP-MS CCT Disturbance |
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