CAJ | 학술논문

采用活性炭吸附气体样品中的丙烯酸甲酯，用二硫化碳浸泡解吸30 min 后，取上清液进样，用气相色谱法 FID检测器测定。方法在0．475 mg ／L ～38．0 mg ／L 范围内线性良好，空白活性炭采样管的3个浓度水平加标回收率为94．7％～98．7％，测定结果的 RSD 为2．7％～4．6％，方法检出限为0．075μg，当采集1．5 L 气体样品时，最低检测质量浓度为0．05 mg ／m3。以南京化学工业园区常见的15种化合物做干扰试验，结果方法稳定性好，测定不受干扰。用该方法测定南京市某企业周边环境空气，结果上风向和下风向丙烯酸甲酯均未检出。
채용활성탄흡부기체양품중적병희산갑지，용이류화탄침포해흡30 min 후，취상청액진양，용기상색보법 FID검측기측정。방법재0．475 mg ／L ～38．0 mg ／L 범위내선성량호，공백활성탄채양관적3개농도수평가표회수솔위94．7％～98．7％，측정결과적 RSD 위2．7％～4．6％，방법검출한위0．075μg，당채집1．5 L 기체양품시，최저검측질량농도위0．05 mg ／m3。이남경화학공업완구상견적15충화합물주간우시험，결과방법은정성호，측정불수간우。용해방법측정남경시모기업주변배경공기，결과상풍향화하풍향병희산갑지균미검출。
A method was established for determination of methyl acrylate in air sample.After absorbed by active carbon,methyl acrylate was desorbed by 1 mL of carbon disulfide in 30 min.Subsequently the supernatant was injected into the gas chromatograph and separated by DB-624 column.External standard curve was used to quantitative analysis.The current method showed good linearity in the concentration range from 0.475 mg /L to 38.0 mg /L.The spiking blank experiments were carried out at low,medium and high levels and it showed that the average recoveries ranged from 94.7% to 98.7%,and the relative standard deviations (RSDs)varied from 2.7% to 4.6%.The method determination limit was calculated to be 0.075 μg,and the lowest detectable con-centration is 0.05 mg /m3 when the sampling volume is 1 .5 L.1 5 kinds of common compounds in Nanjing Chemi-cal Industrial Zone showed no interference with methyl acrylate,such as acetone,iso-propanol,methylene chlo-ride,acrylonitrile,n-hexane,cyclohexane,1 ,2-dichloroethane,benzene,toluene,ethylbenzene,xylene,styrene, chlorobenzene,butyl acetate,n-hendecane,et al.Determination of air surrounding environment of an enterprise in Nanjing city with the method,the wind direction and wind to no methacrylate detection.