| 石墨炉原子吸收法直接测定奶粉中铅镉含量 |
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| 引用本文： | 刘红望,潘振球.石墨炉原子吸收法直接测定奶粉中铅镉含量[J].光谱学与光谱分析,1997,17(3):82-85. |
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| 作者姓名： | 刘红望 潘振球 |
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| 作者单位： | [1]长沙卫生检疫局 [2]湖南省卫生防疫站 |
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| 摘 要： | 本文报道了运用悬浮技术－石墨炉原子吸收法直接测定奶粉中的铅镉含量，并就此进行了一些探讨，实验无需进行消化处理，充分利用石墨炉本身所具有的对样品进行部分预处理的功能，用１ｍｇ／ｍｌ磷酸二氢铵作悬浮剂和基体改进剂，将奶粉样品制成均匀悬浮样液，直接进行测定，灰化温度可提高到８００℃，基体干扰被消除，铅和镉无灰化损失，方法简便，快捷，准确，避免了因样品预处理而带来的干扰和损失，铅的回收率为１００．１％，Ｃ
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| 关 键 词： | 悬浮技术 石墨炉 铅 镉 奶粉 原子吸收 |
STUDY ON THE DIRECT DETERMINATION OF Pb AND Cd IN MILK POWDER BY GFAAS |
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| H Liu,Z Pan,J Feng.STUDY ON THE DIRECT DETERMINATION OF Pb AND Cd IN MILK POWDER BY GFAAS[J].Spectroscopy and Spectral Analysis,1997,17(3):82-85. |
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| Authors: | H Liu Z Pan J Feng |
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| Institution: | Changsha Health and Quarantine Bureau of P R China, 410001 Changsha. |
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| Abstract: | The paper reports the direct determination of Pb and Cd in milk powder by GFAAS. The mothed does not need any pre-treatment to the samples and fully use some function of pre-treatment which the Graphite Furnace have. The result indicates that the method is simple, rapid and accurate, and the false result from any pre-treatment to the samples can be reduced. The recover rate of Pb is 100.1%, CV =2.7 ; and Cd is 98.6%, CV = 3.1 %. This method is also applied to the rapid determination of Pb and Cd in soluble samples with satisfactory results. |
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| Keywords: | GFAAS Milk powder Pb Cd |
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