%0 Journal Article
%T On-line Measurement of Water-Soluble Ions in Ambient Particles
%A WEN Tianxue
%A WANG Yuesi
%A CHANG Shih-Yu
%A LIU Guangren
%A <br>WEN Tianxue
%A WANG Yuesi
%A CHANG Shih-Yu
%A LIU Guangren
%J 大气科学进展
%D 2006
%I 
%X Combining the system of rapid collection of ambient particles and ion chromatography, the system of rapid collection of fine particles and ion chromatography (RCFP-IC) was established to automatically analyze on-line the concentrations of water-soluble ions in ambient particles. Here, the general scheme of RCFP-IC is described and its basic performance is tested. The detection limit of RCFP-IC for SO42-,NO-3, NO-2, Cl- and F- is below 0.3 μg m-3. The collection efficiency of RCFP-IC increases rapidly with increasing sized particles. For particles larger than 300 nm, the collection efficiency approaches 100%. The precision of RCFP-IC is more than 90% over 28 repetitions. The response of RCFP-IC is very sensitive and no obvious cross-pollution is found during measurement. A comparison of RCFP-IC with an integrated filter measurement indicates that the measurement of RCFP-IC is comparable in both laboratory experiments and field observations. The results of the field experiment prove that RCFP-IC is an effective on-line monitoring system and is helpful in source apportionment and pollution episode monitoring.
%K RCFP-IC
%K water-soluble ions
%K on-line
%K basic performance
%K field observation<br>离子色谱法
%K 在线管理
%K 水溶性
%K 地形摄影
%K 水污染化学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=C06808891FCD669FF35B443AE8D5F2ED&yid=37904DC365DD7266&vid=EA389574707BDED3&iid=E158A972A605785F&sid=CD26609C367AC9C8&eid=106103EB0EA31435&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=6&reference_num=24