CAJ | 학술논문

目的：建立工作场所空气中甲基丙烯酸缩水甘油酯（ GMA）的活性炭管采集溶剂解吸－气相色谱测定方法。方法采用活性炭管采集空气样品，二甲基甲酰胺－二硫化碳（1∶1，V／V）溶液解吸，经毛细管气相色谱柱分离，火焰离子化检测器检测。结果 GMA质量浓度在3.78～151.00 mg／L呈线性关系，相关系数为0.9998，检出限为0.06 mg／L，定量下限为0.20 mg／L，最低检出浓度和最低定量浓度分别为0.02和0.07 mg／m3（以采集3.00 L空气计）；平均解吸效率为94.00％～99.10％，批内、批间精密度分别为1.34％～2.46％和2.30％～4.11％。空气样品在－20℃冰箱中至少可保存7 d。结论本方法灵敏度高，精密度和准确度好，操作方法简单，适用于工作场所空气中GMA的采样与检测。
목적：건립공작장소공기중갑기병희산축수감유지（ GMA）적활성탄관채집용제해흡－기상색보측정방법。방법채용활성탄관채집공기양품，이갑기갑선알－이류화탄（1∶1，V／V）용액해흡，경모세관기상색보주분리，화염리자화검측기검측。결과 GMA질량농도재3.78～151.00 mg／L정선성관계，상관계수위0.9998，검출한위0.06 mg／L，정량하한위0.20 mg／L，최저검출농도화최저정량농도분별위0.02화0.07 mg／m3（이채집3.00 L공기계）；평균해흡효솔위94.00％～99.10％，비내、비간정밀도분별위1.34％～2.46％화2.30％～4.11％。공기양품재－20℃빙상중지소가보존7 d。결론본방법령민도고，정밀도화준학도호，조작방법간단，괄용우공작장소공기중GMA적채양여검측。
Objective To establish a method for determination of glycidyl methacrylate ( GMA) in workplace air by solvent desorption gas chromatography .Methods GMA in the air of workplace was collected by activated carbon tube and desorbed with solvent (dimethylformamide-carbon disulfide, 1∶1, V/V), then separated by capillary gas chromatography column and analyzed by flame ionization detector .Results The linearity range of GMA mass concentration was 3.78-151.00 mg/L, and the correlation coefficient was 0.999 8.The limited detectable mass concentration was 0.06 mg/L, the limited quantitative mass concentration was 0.20 mg/L.The minimum detectable and quantitative mass concentration were 0.02 and 0.07 mg/m3 respectively (3.00 L sample).The average desorption efficiency was 94.00%-99.10%.The within-run and the between-run precision were 1.34%-2.46%and 2.30%-4.11%respectively.Samples could be stored for at least 7 days in refrigerator at -20℃.Conclusion The method for determination of GMA by solvent desorption-gas chromatography has advantages of high sensitivity , good precision and accuracy , simple operation , which could be widely applied in sampling and detection of GMA .