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Author Fan, Hui ♦ Ding, Mingyu ♦ Tanaka, Kazuhiko ♦ Hu, Wenzhi
Source J-STAGE
Content type Text
Publisher The Japan Society for Analytical Chemistry
Language English
Abstract A simple, sensitive and rapid ion-exclusion chromatographic method for the simultaneous separation of carbonic acid and short chain organic acids (formic acid, acetic acid, and propionic acid) has been developed. A weakly acidic cation exchange resin column TSKgel OApak-A was used for the separation; pure water, owing to its lower background conductance, was employed as eluent in order to obtain high detection sensitivity. A good separation of these weak acids was achieved in 16 min. The linear range of the peak area calibration curve for carbonic acid was from 3.0 mg/L to 500 mg/L. The conductivity detection limit calculated at S/N = 3 was 0.084 mg/L for carbonic acid. The method developed in this work was successfully applied to the determination of carbonic acid in several environmental water samples without any pretreatment.
ISSN 09106340
Learning Resource Type Article
Publisher Date 2005-01-01
e-ISSN 13482246
Journal Analytical Sciences(analsci)
Volume Number 21
Issue Number 2
Page Count 3
Starting Page 121
Ending Page 123


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