| 石墨炉原子吸收法测定水中镉和铅 |
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| 引用本文： | 吴颖,冯利,陈中兰. 石墨炉原子吸收法测定水中镉和铅[J]. 广州化工, 2011, 0(3): 119-120,132 |
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| 作者姓名： | 吴颖 冯利 陈中兰 |
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| 作者单位： | 1. 西华师范大学化学应用与污染控制技术四川省重点实验室,四川南充,637051
2. 江油市环境保护局,四川绵阳,621700 |
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| 摘 要： | 采用石墨炉原子吸收光谱法测定不同水体中的铅,镉的含量.分别试验了不加改进剂、加重铬酸钾、加磷酸二氢铵三种检测方法对测定结果的影响.铅、镉的线性范围分别为0~20 ng/mL、0~15 ng/mL,相关系数r分别为0.999 8、0.999 8,回收率分别为96.5%~101.1%和98%~103.1%,相对标准偏差分别为RSD≤1.026%和RSD≤1.038%。
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| 关 键 词： | 石墨炉原子吸收法 水 铅 镉 |
Determination of Lead and Cadmiun in Water by GFAAS |
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| WU Ying,FENG Li,CHEN Zhong-lan. Determination of Lead and Cadmiun in Water by GFAAS[J]. GuangZhou Chemical Industry and Technology, 2011, 0(3): 119-120,132 |
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| Authors: | WU Ying FENG Li CHEN Zhong-lan |
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| Affiliation: | 1 Sichuan Key Laboratories of Chemical Application and Pollution Control Technology,China West Normal University,Sichuan Nanchong 637002;2 Jiangyou Environmental Protection Bureau,Sichuan Mianyang 621700,China) |
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| Abstract: | The operating conditions of Graphite Furnace Atomic Absorption Spectrometry（GFAAS） were optimized.A method for the determination of lead and cadmium in water by digesting samples with digestion instrument,deuterium lamp background correct and GFAAS was established.K2Cr2O4 and NH4H2PO4 were used as matrix modifier in the determination of lead and Cadmium by GFAAS.The linear range was 0.00~20.00 ng·mL-1 with r=0.999 8 and RSD≤1.026% for Lead.Linear range was 0.00~15.00 ng·mL-1 with r=0.999 8 and RSD≤1.038% for cadmium.The recovery experiments for both elements were satisfactory,96.5%~101.1% for lead,and 98%~103.1% for cadmium. |
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| Keywords: | GFAAS water lead cadmium |
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