Serial separation of cations and anions by ion chromatography using the peak parking technique and sulfosalicylic acid as the eluent |
| |
Authors: | Muhammad Amin Lee Wah Lim Toyohide Takeuchi |
| |
Institution: | (1) Department of Chemistry, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan |
| |
Abstract: | An improvement of the peak parking technique is described for the serial determination of cations (Na+, , K+, Mg2+, and Ca2+) and anions (Cl−, , and ) using a single pump, a single eluent and a single detector. The present system used commercially-available unmodified cation
exchange and anion exchange columns, which were attached to each switching valve. When 1.75 mM 5-sulfosalicylic acid was
used as the eluent, serial separation of the above cations and anions was achieved in less than 20 min. The proposed ion chromatographic
method was successfully applied to the serial determination of cations and anions in tap water and river water samples. The
limits of detection at S/N=3 for an injection of 20 μl were 16–68 ppb (μg/l) for cations and 15–28 ppb for anions. |
| |
Keywords: | Ion chromatography Column switching Peak parking 5-Sulfosalicylic acid |
本文献已被 PubMed SpringerLink 等数据库收录! |
|