HPLC—HG—AFS通道合并测定地表水中砷形态  

Determination of Arsenic Morphology In Surface Water by Combined Channels of HPLC- HG-AFS

作　　者：林建奇[1] 赵慷[1] 孙鹏[1] 李菊兰[1] 闫京山 炼晓璐 

机构地区：[1]北京海光仪器有限公司,100015

出　　处：《现代科学仪器》2017年第4期103-106,共4页Modern Scientific Instruments

摘　　要：建立了HPLC—HG-AFS（高效液相．氢化物发生联用原子荧光光谱法），以及通道合并测定地表水中砷形态方法。该方法对四种砷形态（AsⅢ，DMA，MMA，AsV）的方法检测限为0．25．0．89mg．L^-1，标准曲线相关系数r均优于0．999。将该方法用于地表水样品测试，加标回收率在73．0—105％之间，同一样品平行处理7次，相对标准偏差（RSD）均小于5％。The method of analysising arsenic morphology in surface water was established by HPLC -HG-AFS （high efficiency liquid phase - hydride generation）, and the arsenic morphology of surface water was tested by means of channel combining. Four kinds of arsenic morphology （AsⅢ , DMA, MMA, As V ） method detection are between 0.25- 0.89 mg.L^-1, and correlation index of standard curve better than 0.999. The method was applied to the test of surface water samples, and the index recovery rate was between 73.05-105%, and the same sample was processed seven times in parallel, and the relative standard deviation （RSD） was less than 5%

关 键 词：砷形态 通道合并 HPLC—HG—AFS 地表水 

分 类 号：O657.3[理学—分析化学]