固相萃取富集高效液相色谱法测定苯氧乙酸和2,4-二氯苯氧乙酸  

Determination of Phenoxyacetic Acid and 2,4-Dichlorophenoxyacetic Acid Using Solid-phase Extraction and High Performance Liquid Chromatography

作　　者：李金昶[1] 王璐[1] 韩明友 包明[1] 王广[1] 王元鸿[1] 

机构地区：[1]东北师范大学分析测试中心,长春130024

出　　处：《分析化学》2001年第5期580-582,共3页Chinese Journal of Analytical Chemistry

摘　　要：建立了以固相萃取技术进行富集 ,高效液相色谱法进行分离和检测苯氧乙酸和 2 ,4 二氯苯氧乙酸的方法。环境水中的苯氧乙酸和 2 ,4 二氯苯氧乙酸用Sep PakC18Cartridge进行固相萃取。液相色谱的条件是 :Shim PackCLCODS柱为分析柱 ;甲醇 水 (9∶1,V/V)为流动相 ;流速为 1mL/min ;在UV 2 75nm波长下进行检测。A high performance liquid chromatographic method for the determination of phenoxyacetic acid and 2,4 dichlorophroxyacetic acid in environnmental waters was described. Phenoxyacetic acid and 2,4 dichioropheroxyacetic acid in sample were enriched on Sep Pak C 18 column, and methanol was employed as elutent. The shim pack CLC ODS (150mm×6.0mm i.d.) column was used as separation column at 40℃ and eluted with methanol water (9∶1, V/V )(pH 3.0) at flow rate of 1.0 mL/min, the detection wavelength was 275 nm. The recoveries of the two compounds were >98%. The detection limit was 0.04 mg/L.

关 键 词：高效液相色谱 固相萃取 苯氧乙酸 2 4-二氯苯氧乙酸 除草剂 分析 

分 类 号：O657.7[理学—分析化学]