CAJ | 학술논문

目的建立工作场所空气中2,4-二氯苯氧乙酸(2,4-滴)的高效液相色谱测定法.方法空气中2,4-滴经超细玻璃纤维滤纸采集,甲醇洗脱,C18柱分离后,紫外检测器检测,保留时间定性,峰面积定量.结果方法线性范围为2～200 μg/ml,洗脱效率为94.6％～95.9％,检出限(S/N=3)为0.034μg/ml(进样20μl洗脱液),定量下限为(S/N=10)为0.11 μg/ml,最低检出浓度为0.011 mg/m3,最低定量浓度为0.037 mg/m3(以采集45 L空气样品计).结论该方法采样和样品处理方法简单,各项指标均可满足方法学要求,可用于工作场所空气中2,4-滴的测定.
목적 건립공작장소공기중2,4-이록분양을산(2,4-적)적고효액상색보측정법.방법 공기중2,4-적경초세파리섬유려지채집,갑순세탈,C18주분리후,자외검측기검측,보류시간정성,봉면적정량.결과 방법선성범위위2～200 μg/ml,세탈효솔위94.6％～95.9％,검출한(S/N=3)위0.034μg/ml(진양20μl세탈액),정량하한위(S/N=10)위0.11 μg/ml,최저검출농도위0.011 mg/m3,최저정량농도위0.037 mg/m3(이채집45 L공기양품계).결론 해방법채양화양품처리방법간단,각항지표균가만족방법학요구,가용우공작장소공기중2,4-적적측정.
Objective To develop a method for determination of 2,4-dichlorophenoxyacetic acid (2,4-D) in the air of workplace by high-performance liquid chromatography.Methods 2,4-D was collected by ultrafine glass filters,desorbed by methanol,separated by a C18 column,and detected by a UV detector.Identification and quantification of 2,4-D were performed by retention time and peak areas,respectively.Results The linear range of the test was 2 ～200 μg/ml; the elution efficiency was 94.6％-95.9％; the limit of detection (S/N=3) was 0.034 μg/ml (injection volume of 20 μl eluant); the lower limit of quantification (S/N=10) was 0.11 μg/ml; the minimum detectable concentration was 0.011 mg/m3; the minimum quantifiable concentration was 0.037 mg/m3 (with sampled air volume of 45 L).Conclusion This method is convenient and simple in sample collection and preparation,and satisfies all methodological requirements.Therefore,this method is useful for the determination of 2,4-D in the air of workplace.