| 大气中硝酸和颗粒物硝酸盐的测定 |
| |
| 引用本文： | 沈济,赵倩雪.大气中硝酸和颗粒物硝酸盐的测定[J].环境化学,1997,16(5):449-455. |
| |
| 作者姓名： | 沈济 赵倩雪 |
| |
| 作者单位： | 中国科学院生态环境研究中心 北京100085 |
| |
| 基金项目： | 国家自然科学基金资助项目:No 29477285 |
| |
| 摘 要： | 研究了用扩散管差分法和多种叠滤膜法测量大气中粒物硝酸盐和气体硝酸，扩散管差分法可以测量颗粒物硝酸盐和气体硝酸，避免了采样时颗粒物硝酸盐的人为损失。Ｆｌｏｕｒｏｐｏｒｅ聚四氟乙烯膜等惰性膜也可以采集颗粒物硝酸盐，其后的ＮａＣｌ浸渍膜采集硝酸，而玻璃纤维膜几乎同时采集了颗粒物硝酸盐和硝酸。
|
| 关 键 词： | 叠层滤膜 颗粒物 硝酸盐 大气分析 |
DETERMINATION OF ATMOSPHERIC NITRATE AND NITRIC ACID |
| |
| Shen Ji,Zhao Qianxue.DETERMINATION OF ATMOSPHERIC NITRATE AND NITRIC ACID[J].Environmental Chemistry,1997,16(5):449-455. |
| |
| Authors: | Shen Ji Zhao Qianxue |
| |
| Abstract: | Measurements of particulate nitrate and gaseous nitric acid in ambient air were studied by denuder difference and filter packs. The denuder difference experiment can be used to measure particulate nitrate and gaseous nitric acid in the atmosphere while avoiding losses of particulate nitrate by sampling artrifacts. The inlet filter such as Flouropore filter can be used to collect particulate nitrate and NaCl impregnated filter in series to collect gaseous nitric acid. The glass fiber filters collected almost both particulate nitrate and gaseous nitric acid. |
| |
| Keywords: | denuder filter pack particulate nirtate nitric acid |
| 本文献已被 CNKI 维普 等数据库收录！ |
