| HPLC—ICP—MS法测定农业废水中有机砷与无机砷的方法研究 |
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| 引用本文： | 陕红,袁志华,刘丹丹,刘亚利.HPLC—ICP—MS法测定农业废水中有机砷与无机砷的方法研究[J].国外农业环境保护,2014(2):197-201. |
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| 作者姓名： | 陕红 袁志华 刘丹丹 刘亚利 |
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| 作者单位： | [1]农业部农业环境重点实验室,中国农业科学院农业环境与可持续发展研究所,北京100081 [2]农业部环境保护科研监测所,天津300191 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项（BSRF201217） |
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| 摘 要： | 建立了应用高效液相色谱（HPLC）和电感耦合等离子质谱（ICP—Ms）联用技术测定农业水环境样品中三价砷（Aslll）、一甲基砷（MMA）、二甲基砷（DMA）、五价砷（AsV）4种砷形态的分析方法。试验表明，4种砷形态的线性范围宽（1-300μg·L-1），相关系数（r）均大于0．9990，方法检出限低（0．7～0．98μg·L-1），精密度好，重复测定7次结果的RSD均小于5％。通过计算加标回收率验证方法的准确性，加标回收率为94％～112％。实际样品的测定结果显示，农田废水中砷的主要存在形态为As（V），其次为As（Ⅲ）。
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| 关 键 词： | 农业废水 有机砷 无机砷 HPLC—ICP-MS |
Analysis of Organic and Inorganic Arsenic in Waste Water of Agricultural Environment by High Performance Liquid Chromatography and Inductively Coupled Plasma Mass Spectrometry |
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| Authors: | SHAN Hong YUAN Zhi-hua LIU Dan-dan LIU Ya-li |
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| Institution: | 1.Key Laboratory for Agricultural Environment, Ministry of Agriculture, Institute of Environment and Sustainable Development in Agricul- ture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2. Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China) |
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| Abstract: | A high performance liquid chromatography and inductively coupled plasma mass spectrometric method was established for analyz- ing 4 arsenic speciations in water of agricultural environment, including As （ Ⅲ ）, MMA, DMA and As （ V ）. The results showed that the method had a wide linear range（ 1 - 300 μg·L-1） and the linear coefficients were more than 0.999 O. The detection limits were very low （0.7-0.9μg·L-1）. All of the relative standard deviations （RSD） were less than 5%. The recoveries were between 94% and 112%. The analysis results showed that As（ V ） and As（ 11I ） were the main arsenic speciations existed in the waste water of agricultural environment. Keywords： waste water in agricultural environment; organic arsenic; inorganic arsenic; high performance liquid chromatography-inductively coupled plasma mass spectrometric |
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| Keywords: | waste water in agricultural environment organic arsenic inorganic arsenic high performance liquid chromatography-inductivelycoupled plasma mass spectrometric |
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