|
| HPLC-ICP-MS法测定农业废水中有机砷与无机砷的方法研究 |
| Analysis of Organic and Inorganic Arsenic in Waste Water of Agricultural Environment by High Performance Liquid Chromatography and Inductively Coupled Plasma Mass Spectrometry |
| 投稿时间：2013-11-21 |
| DOI：10.13254/j.jare.2013.0211 |
| 中文关键词: 农业废水 有机砷 无机砷 HPLC-ICP-MS |
| 英文关键词: waste water in agricultural environment organic arsenic inorganic arsenic high performance liquid chromatography-inductively coupled plasma mass spectrometric |
| 基金项目:中央级公益性科研院所基本科研业务费专项(BSRF201217) |
|
| 摘要点击次数: 2338 |
| 全文下载次数: 3274 |
| 中文摘要: |
| 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(AsⅢ)、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0.999 0,方法检出限低(0.7~0.9μg·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)。 |
| 英文摘要: |
| 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 0. 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(Ⅲ)were the main arsenic speciations existed in the waste water of agricultural environment. |
| HTML
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
