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ID 115180
タイトル別表記
Axial Dispersion-Reduced Cation Exchange Module and Its Application to Ion Chromatography
著者
岡本, 和将 徳島大学
岡部, 芹香 徳島大学
キーワード
ion chromatography
anion
suppressor
Nafion tube
axial dispersion
資料タイプ
学術雑誌論文
抄録
The suppressor used in ion chromatography is a module placed between the separation column and conductivity detector. The axial dispersion of the sample solution in the suppressor causes a decline of detection sensitivity due to the broadening of the detection peaks. In this paper, we describe a monofilament inserted Nafion tube-type suppressor for anion analysis, which has an axial dispersion-reduced structure. A standard solution containing fluoride, formate, chloride, nitrite, nitrate, and sulfate was measured by means of an ion chromatograph with the fabricated suppressor. The number of theoretical plates and resolution were, respectively, 1.6 to 2.9 times and 1.3 to 1.8 times higher for the fabricated suppressor than a commercially available electrolytic suppressor. These results suggest that the fabricated suppressor has less axial dispersion of the sample than the electrolytic suppressor. In addition, the background level of the conductivity signal with the fabricated suppressor was suppressed to almost the same level as the electrolytic suppressor.
掲載誌名
Journal of Flow Injection Analysis
ISSN
0911775X
24337374
cat書誌ID
AA10962565
出版者
Japanese Association for Flow Injection Analysis
37
1
開始ページ
3
終了ページ
8
発行日
2020
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
jpn
著者版フラグ
出版社版
部局
薬学系