|
| 热脱附-GC/MS法测定垃圾填埋场周围空气中氯代烃 |
| Determination of Chlorohydrocarbon in Air around Landfill by Thermal Desorption GC/MS Method |
| |
| DOI： |
| 中文关键词: 氯代烃 热脱附 气相色谱-质谱联用法 垃圾填埋场 空气 |
| 英文关键词: Chlorohydrocarbon Thermal desorption GC MS Landfill site Air |
| 基金项目:国家自然科学基金资助项目(21607121)；河北省高等学校科学技术研究指导基金资助项目(Z2017055） |
|
| 摘要点击次数: 658 |
| 全文下载次数: 27 |
| 中文摘要: |
| 采用热脱附-冷阱捕集-GC/MS法测定垃圾填埋场周围空气中24种氯代烃，通过试验优化并确定热脱附质谱的最佳处理条件。方法在500 mg/L~100 mg/L范围内线性良好，24种氯代烃的方法检出限为0060 μg/m3~0200 μg/m3，测定下限为0240 μg/m3~0800 μg/m3。空白加标回收率为918%~110%，6次测定结果的RSD均＜5%。实际样品测定结果为0112 mg/m3~0412 mg/m3，表明离垃圾填埋场最近的居民区环境中氯代烃为未检出或痕量分布，对生命体危害极低。 |
| 英文摘要: |
| 24 kinds of chlorohydrocarbon in the air around the landfill site were detected by thermal desorption cold trap gas chromatography mass spectrometry. The optimized conditions were determined through experiments. The method had a good linearity in the range of 5.00 mg/L~100 mg/L. The detection limits of 24 kinds of chlorohydrocarbon were 0.060 μg/m3~0.200 μg/m3, and the lower det〖JP3〗ermination limits were 0.240 μg/m3~〖JP〗0.800 μg/m3. The recoveries were 90%~110%, the RSDs were less than 5%(n=6). The results of actual samples were 0.112 mg/m3~0.412 mg/m3, indicating chlorohydrocarbon in the residential area nearest to the landfill was not detected and had little harm to life. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
