Analysis of Carbonic Acid in Water Samples by Ion-Exclusion Chromatography with Pure Water as Eluent
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Accession number;05A0184728
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| Title;Analysis of Carbonic Acid in Water Samples by Ion-Exclusion Chromatography with Pure Water as Eluent |
| Author;
FAN H
(Tsinghua Univ., Beijing, Chn)
DING M
(Tsinghua Univ., Beijing, Chn)
TANAKA K
(National Inst. Of Advanced Industrial Sci. And Technol. At Seto, Aichi, Jpn)
HU W
(Hokkaido Univ., Sapporo, Jpn)
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Journal Title;Anal Sci
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Journal Code:G0673B
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ISSN:0910-6340
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VOL.21;NO.2;PAGE.121-123(2005)
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| Figure&Table&Reference;FIG.3, TBL.1, REF.15 |
| Pub. Country;Japan |
| 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. (author abst.) |
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