中国环境监测
中國環境鑑測
중국배경감측
ENVIRONMENTAL MONITORING IN CHINA
2014年
4期
159-162
,共4页
微波辅助萃取%HPLC-AFS%土壤%砷%形态分析
微波輔助萃取%HPLC-AFS%土壤%砷%形態分析
미파보조췌취%HPLC-AFS%토양%신%형태분석
microwave assisted extraction%HPLC-AFS%soil%arsenic%speciation analysis
建立了微波辅助萃取-高效液相色谱（HPLC）-原子荧光光谱（AFS）联用技术分析土壤中亚砷酸盐[As（Ⅲ）]、二甲基砷（ DMA）、一甲基砷（ MMA）和砷酸盐[ As（Ⅴ）]等4种形态砷。用正交实验设计优化了功率、萃取溶剂体积、萃取温度、萃取时间等微波萃取条件。方法的线性范围为1?00～100μg/L，As（Ⅲ）、DMA、MMA 和As（Ⅴ）的检出限分别为0?21、0?33、0?38、0?56μg/L，相对标准偏差为4?6％～5?5％，样品回收率为78?1％～94?4％。用该法分析了4种土壤样品中的砷形态。
建立瞭微波輔助萃取-高效液相色譜（HPLC）-原子熒光光譜（AFS）聯用技術分析土壤中亞砷痠鹽[As（Ⅲ）]、二甲基砷（ DMA）、一甲基砷（ MMA）和砷痠鹽[ As（Ⅴ）]等4種形態砷。用正交實驗設計優化瞭功率、萃取溶劑體積、萃取溫度、萃取時間等微波萃取條件。方法的線性範圍為1?00～100μg/L，As（Ⅲ）、DMA、MMA 和As（Ⅴ）的檢齣限分彆為0?21、0?33、0?38、0?56μg/L，相對標準偏差為4?6％～5?5％，樣品迴收率為78?1％～94?4％。用該法分析瞭4種土壤樣品中的砷形態。
건립료미파보조췌취-고효액상색보（HPLC）-원자형광광보（AFS）련용기술분석토양중아신산염[As（Ⅲ）]、이갑기신（ DMA）、일갑기신（ MMA）화신산염[ As（Ⅴ）]등4충형태신。용정교실험설계우화료공솔、췌취용제체적、췌취온도、췌취시간등미파췌취조건。방법적선성범위위1?00～100μg/L，As（Ⅲ）、DMA、MMA 화As（Ⅴ）적검출한분별위0?21、0?33、0?38、0?56μg/L，상대표준편차위4?6％～5?5％，양품회수솔위78?1％～94?4％。용해법분석료4충토양양품중적신형태。
A method for determination of four arsenic species in soil samples was established by microwave assisted extraction ( MAE) coupled with high performance liquid chromatography ( HPLC)-hydride generation ( HG)-atomic fluorescence spectrophotometry ( AFS) . The MAE operating conditions were optimized by the orthogonal test design. The linear range of the calibration curve for As ( III) , methyl arsenic acid ( MAA) , dimethyl arsenic acid ( DMA) and As ( V) was 1?00-100 μg/L. The detection limits for them were 0?21,0?33,0?38,0?56 μg/L, respectively. The RSD was 4?6%-5?5%, and the recoveries were 78?1%-94?4%. The method was successfully applied to the extraction and determination of four arsenic species in soil samples from different regions.
