title: Determination of inorganic anions in natural water by microcolumn ion chromatography with on-column enrichment.
abstract: An on-column enrichment method was developed for the rapid determination of inorganic anions in natural water. The system was assembled from a syringe pump, a six-port switching valve with a sample-enrichment loop, a separation column and a UV detector. The enrichment efficiency of the system was tested by using inorganic anions as samples. The limits of detection were between 0.6 and 7.7 microg/L. The system was applied to the determination of anions in river and pond-water samples.
authors.affiliation: Department of Chemistry, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
authors.forename: Lee Wah
authors.initials: LW
authors.lastname: Lim
authors.forename: Ji-Ye
authors.initials: JY
authors.lastname: Jin
authors.forename: Toyohide
authors.initials: T
authors.lastname: Takeuchi