| 微波消解-原子荧光检测乳制品中铅的方法 |
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| 引用本文： | 王玉英,陈静,王婷婷,赵剑飞,朱宏. 微波消解-原子荧光检测乳制品中铅的方法[J]. 中国乳品工业, 2011, 39(5) |
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| 作者姓名： | 王玉英 陈静 王婷婷 赵剑飞 朱宏 |
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| 作者单位： | 石家庄君乐宝乳业有限公司技术中心,石家庄,050221 |
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| 摘 要： | 研究了微波消解-原子荧光检测乳制品中铅的方法。采用微波消解法对样品进行前处理,原子荧光法中用的载流剂为质量分数2%的盐酸,还原剂为KBH4+K3Fe3(CN)6+NaOH。该方法检出限为0.021μg/L,相对标准偏差为2.15%,回收率在93%~98%之间。与GB5009.12-2010[1]第二法氢化物原子荧光光谱法相比,处理时间缩短了约12 h。该方法具有简单、快速、灵敏度高的特点。
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| 关 键 词： | 微波消解 原子荧光 铅 乳 乳制品 |
Studies on microwave digestion-atomic fluorescence spectrometry of lead content in milk and milk products |
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| WANG Yu-ying,CHEN Jing,WANG Ting-ting,ZHAO Jian-fei,ZHU Hong. Studies on microwave digestion-atomic fluorescence spectrometry of lead content in milk and milk products[J]. China Dairy Industry, 2011, 39(5) |
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| Authors: | WANG Yu-ying CHEN Jing WANG Ting-ting ZHAO Jian-fei ZHU Hong |
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| Affiliation: | WANG Yu-ying,CHEN Jing,WANG Ting-ting,ZHAO Jian-fei,ZHU Hong(Shijiazhuang Junlebao Dairy Co.Ltd,Technology Center 050221) |
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| Abstract: | In this paper,studied on microwave digestion and hydride generation atomic fluorescence spectrometry determination of lead in milk and dairy products,used the pre-treatment methods of microwave digestion.Atomic fluorescence of the reducing agent for the KBH4+K3Fe3(CN)6+NaOH,carrier liquid for 2% hydrochloric acid.Using the above conditions,the reaction essence was measured to be the precision of 1.65%,the relative standard deviations of 1.72%,and the recovery ranges from 93%-98%.The method compares with the... |
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| Keywords: | microwave digestion atomic fluorescence lead milk dairy products |
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