| 横向加热石墨炉原子吸收法测定轻质碳酸钙中的铅 |
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| 引用本文： | 孙梅,余华明,刘毅,陈树榆.横向加热石墨炉原子吸收法测定轻质碳酸钙中的铅[J].中国科学技术大学学报,2006,36(7):767-770. |
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| 作者姓名： | 孙梅 余华明 刘毅 陈树榆 |
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| 作者单位： | 中国科学技术大学中国科学院结构分析重点实验室,安徽合肥230026 |
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| 摘 要： | 采用横向加热石墨炉原子吸收光谱法测定轻质碳酸钙中的铅，用磷酸二氢铵和硝酸镁作混合基体改进剂．消除基体干扰．样品铅的测定相对标准偏差为2．24％，回收率为97．8％～98．2％。检出限为3．6pg．
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| 关 键 词： | 横向加热 石墨炉原子吸收光谱 塞曼背景校正 基体改进剂 轻质碳酸钙 铅 富钙 |
| 文章编号： | 0253-2778(2006)07-0767-04 |
| 收稿时间： | 07 12 2005 12:00AM |
| 修稿时间： | 03 16 2006 12:00AM |
Determination of lead in light calcium carbonate determined by transversely heated GFAAS |
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| SUN Mei, YU Hua-ming, LIU Yi, CHEN Shu-yu.Determination of lead in light calcium carbonate determined by transversely heated GFAAS[J].Journal of University of Science and Technology of China,2006,36(7):767-770. |
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| Authors: | SUN Mei YU Hua-ming LIU Yi CHEN Shu-yu |
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| Institution: | Structure Research Laboratory ,University of Science and Techology of China ,Hefei 230026,China |
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| Abstract: | The method of using transversely heated graphite furnace atomic absorption spectrometry(GFAAS) to detect Pb in light calcium carbonate was studied.NH_4H_2PO_4 and Mg(NO_3)_2 were used as a matrix modifier so as to eliminate the matrix interference.The relative standard deviation of Pb in the sample is 2.24%,the recovery is 97.8%~98.2%,and the detection limit of Pb is 3.6 pg. |
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| Keywords: | transversely heated GFAAS Zeeman background correction matrix modifier light calcium carbonate lead rich-calcium |
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