超低沸点挥发性有机物测定中的要点分析 |
| |
引用本文: | 王荟,高占啟,赵艳,李媛,严.超低沸点挥发性有机物测定中的要点分析[J].环境监测管理与技术,2019,31(4):46-48. |
| |
作者姓名: | 王荟 高占啟 赵艳 李媛 严 |
| |
作者单位: | 江苏省环境监测中心,江苏 南京,210036;江苏省环境监测中心,江苏 南京,210036;江苏省环境监测中心,江苏 南京,210036;江苏省环境监测中心,江苏 南京,210036;江苏省环境监测中心,江苏 南京,210036 |
| |
基金项目: | 国家环境保护公益性行业科研专项基金资助项目(201509002);国家环境保护标准制修订基金资助项目(2019-4) |
| |
摘 要: | 采用大气浓缩仪-气相色谱法测定超低沸点挥发性有机物乙烷、乙烯、丙烷、丙烯、乙炔,选用PLOT-Q柱分析,控制真空罐内相对湿度约50%,通过优化测定条件使方法线性良好,5种低沸点化合物的检出限为0.08 nmol/mol~0.2 nmol/mol,样品保存时间不超过10 d。用该方法测定某地区环境空气中VOCs,结果检出率均为100%。
|
关 键 词: | 超低沸点 挥发性有机物 气相色谱法 环境空气 |
Key Points of Ultralow Boiling Point Volatile Organic Compounds Analysis |
| |
Abstract: | Ultralow boiling point volatile organic compounds such as ethane, ethylene, propane, propylene and acetylene were determined by air concentrator gas chromatography with PLOT Q column. The method had good linearity with 50% relative humidity in the vacuum tank and optimized instrument parameters. The detection limits of five low boiling point compounds ranged from 0.08 nmol/mol to 0.2 nmol/mol. The sample storage time was within 10 days. The method was applied to VOCs determination in ambient air of an area and the detection rate was 100%. |
| |
Keywords: | Ultralow boiling point Volatile organic compounds Gas chromatography Ambient air |
本文献已被 CNKI 万方数据 等数据库收录! |
| 点击此处可从《环境监测管理与技术》浏览原始摘要信息 |
| 点击此处可从《环境监测管理与技术》下载免费的PDF全文 |
|