| 石墨炉原子吸收光谱法测定血清中砷 |
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| 引用本文： | 马春琪,迟锡增.石墨炉原子吸收光谱法测定血清中砷[J].光谱学与光谱分析,1996,16(5):92-97. |
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| 作者姓名： | 马春琪 迟锡增 |
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| 作者单位： | 北京师范大学化学系 |
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| 摘 要： | 本文研究了石墨炉原子吸收光谱法测定血清中砷的适宜条件，比较了镍与钯对砷的基体改进作用，给出了在Ｔｒｉｔｏｎ－Ｘ－１００存在下，利用钯作为基体改进剂直接测定血清中砷的方法。检出限为６．３７ｎｇ．ｍｌ＾－１，相对标准偏差及回收率分别为１．７９％和９６．８－１０３．２％、线性范围５０－６００ｎｇ．ｍｌ＾－１。
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| 关 键 词： | 砷 石墨炉 原子吸收光谱法 基体改进剂 血清 |
DETERMINATION OF TRACE ARSENIC IN SERUM BY GFAAS |
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| MA Chunqi, CHI Xizeng and SHI Yan.DETERMINATION OF TRACE ARSENIC IN SERUM BY GFAAS[J].Spectroscopy and Spectral Analysis,1996,16(5):92-97. |
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| Authors: | MA Chunqi CHI Xizeng and SHI Yan |
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| Abstract: | The operating conditions for the determination of arsenic in human blood serum by GFAAS are studied. Matrix modifiers, nickle and palladium are compared. In the presence of Triton X-100,the direct determination of arsenic in serum with the use of palladium as matrix modifier is described. Arsenic concentrations range from 50ng/ml to 600ng/ml in serum can be determined when the detective limit reaches 6. 37ng/ml(K = 3 ). The relative standard deviations is 1. 79% and the recovery percentage gets to 96. 8-103. 2%. The method is simple and rapid. The volatilization and pollution of arsenic is avoided. The method is applied to the serum of 6 subjects with the satisfactory effect. |
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| Keywords: | Arsenic GFAAS Matrix modifier Serum |
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