| 石墨炉原子吸收光谱法测定水处理剂中微量铅和镉 |
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| 引用本文： | 郑恩,喻海雅,谢晖.石墨炉原子吸收光谱法测定水处理剂中微量铅和镉[J].光谱学与光谱分析,2000,20(3):379-380. |
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| 作者姓名： | 郑恩 喻海雅 谢晖 |
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| 作者单位： | 国家城市供水水质监测网长沙监测站,410007,长沙 |
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| 摘 要： | 本文研究了石墨炉原子吸收光谱法测定水处理剂聚合氯化铝中铅、镉含量的适宜条件。用氘灯校正背景 ,磷酸二氢铵做基体改进剂 ,省去了冗长的前处理过程。在测定条件下 ,铅的检测限为 0 .6 5μg· L- 1 ,线性范围 0～ 5 0 μg·L- 1 ;镉的检测限为 0 .12 μg· L- 1 ,线性范围 0～ 2 0 μg·L- 1 ;回收率在 90 %～ 110 %之间。本方法具有准确、快速、简便之优点 ,用于实验样品的测定 ,结果令人满意。
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| 关 键 词： | 石墨炉原子吸收光谱 水处理剂 铅 镉 聚合氯化铝 |
Determination of Trace Pb and Cd in Water Treatment Reagent by Graphite Furnace Atomic Absorption Spectrometry |
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| En ZHENG,Haiya YU,Hui XIE.Determination of Trace Pb and Cd in Water Treatment Reagent by Graphite Furnace Atomic Absorption Spectrometry[J].Spectroscopy and Spectral Analysis,2000,20(3):379-380. |
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| Authors: | En ZHENG Haiya YU Hui XIE |
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| Institution: | Water Supply Company of Changsha City, 410007 Changsha. |
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| Abstract: | The optimum conditions for the determination of trace Pb and Cd in water treatment reagent by graphite furnace atomic absorption spectrometry were studied in detail in this paper. The results show that the long and tedious pretreatment process was cut down by calibrating background with D2 lamp and NH4H2PO4 as matrix modifier. The determination limits were 0.65 microgram.L-1 and 0.12 microgram.L-1 for (Pb and Cd) and linear ranges were 0-50 micrograms.L-1, 0-20 micrograms.L-1 for Pb and Cd, respectively. Rate of recovery was 90%-110%. This method is accurate, quick and simple, and can be used successfully to determine actual samples. |
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| Keywords: | Graphite furnace atomic absorption spectrometry Water treatment reagent Pb Cd |
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