CAJ | 학술논문

目的建立工作场所空气中草甘膦的离子色谱测定方法.方法用超细玻璃纤维滤纸采集工作场所空气中草甘膦,用去离子水超声洗脱后离子色谱-电导检测器测定.结果本方法在0.05～1.00 mg/L范围呈线性关系,最低检出限为0.003 mg/m3;最低检出浓度为0.000 41 mg/m3(以采集75 L空气样品计).3种不同浓度的批内、批间精密度分别为1.8％、1.6％、0.8％和1.9％、2.1％、2.2％；回收率为94.8％～97.4％;洗脱效率为94.5％～96.7％;采样效率为100％;样品在室温下至少可保存7d.结论方法的各项指标均符合GBZ/T 210.4-2008《职业卫生标准制订指南第4部分:工作场所空气中化学物质测定方法》的要求,适用于工作场所空气中草甘膦的测定.
목적 건립공작장소공기중초감련적리자색보측정방법.방법 용초세파리섬유려지채집공작장소공기중초감련,용거리자수초성세탈후리자색보-전도검측기측정.결과 본방법재0.05～1.00 mg/L범위정선성관계,최저검출한위0.003 mg/m3;최저검출농도위0.000 41 mg/m3(이채집75 L공기양품계).3충불동농도적비내、비간정밀도분별위1.8％、1.6％、0.8％화1.9％、2.1％、2.2％；회수솔위94.8％～97.4％;세탈효솔위94.5％～96.7％;채양효솔위100％;양품재실온하지소가보존7d.결론 방법적각항지표균부합GBZ/T 210.4-2008《직업위생표준제정지남제4부분:공작장소공기중화학물질측정방법》적요구,괄용우공작장소공기중초감련적측정.
Objective To establish a method for determining glyphosate in the air of workplaces by ion chromatography.Methods Ultra-fine glass fiber filter paper was used to collect glyphosate from the workplace air.After being ultrasonically eluted with deionized water,samples were determined by ion chromatography using a conductivity detector.Results Within the range of 0.05-1.00 mg/L,a linear relationship was found with a limit of detection of 0.003 mg/m3.The minimum detectable concentration was 0.000 41 mg/m3 (calculated by sampling 75 L of air).For three different concentrations of glyphosate,the intra-batch relative standard deviations (RSDs) were 1.8％,1.6％,and 0.8％,respectively,and the inter-batch RSDs were 1.9％,2.1％,and 2.2％,respectively.The recovery rate ranged from 94.8％ to 97.4％.The elution efficiency ranged from 94.5％ to 96.7％.The sampling efficiency was 100％.Samples could be stored at room temperature for at least 7 days.Conclusion This presented method meets the requirements of Guide for establishing occupational health standards-Part 4:Determination methods of air chemicals in workplace and is feasible for determination of glyphosate in the air of workplaces.