| 石墨炉中氯化物对铅原子化的影响 |
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| 引用本文： | 殷忠.石墨炉中氯化物对铅原子化的影响[J].微量元素与健康研究,2004,21(1):42-44. |
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| 作者姓名： | 殷忠 |
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| 作者单位： | 贵州省疾病预防控制中心,贵阳,550004 |
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| 摘 要： | 用比较的方法研究了石墨中氯化物对铅原子化的影响。NaCl和CaCl2 能引起铅吸收信号曲线的变化 ,导致对铅原子化的干扰和影响。实验表明 :两种氯化物在不同程度上能改变铅的τa、τp、τ1和τ2 值。氯化物的干扰主要发生在管壁固相和试样蒸发过程中 ,可用涂钼石墨管和EDTA铵盐作基体改进剂消除铅双峰及多种氯化物的干扰
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| 关 键 词： | 石墨炉原子吸收光谱法 氯化物 铅原子化 |
| 文章编号： | 1005-5320(2004)01-0042-02 |
| 修稿时间： | 2003年9月4日 |
Influence of Chlorides on Lead Atomizationin Graphite Furnace |
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| YIN,Zhong.Influence of Chlorides on Lead Atomizationin Graphite Furnace[J].Studies of Trace Elements and Health,2004,21(1):42-44. |
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| Authors: | YIN Zhong |
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| Abstract: | The interference and influence of NaCl and CaCl2 on the atomization process of Lead were studied with comparative method on the basis of the variation of absorption signal curve of lead resulting from chlorides.The experiments showed that the five chlorides changed the values ofτ a、τ p、τ 1 and τ 2 of lead in various degrees.The interferences of chlorides were mainly in solid phase and of the process of vaporizing samples.The double peak of lead and the interference of mixed chlorides were eliminated by a furnace coated with Mo and using the ammonium salt of EDTA as matrix modifier. |
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| Keywords: | GFAAS Chlorides Lead Atomization |
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