Sensitive and Selective LC Determination of 5-Hydroxyindoles Through Online Electrochemical Fluorescence Derivatization Using Benzylamine
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- TODOROKI Kenichiro
- School of Pharmaceutical Sciences, University of Shizuoka
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- NAKANO Masaki
- Faculty of Pharmaceutical Sciences, Fukuoka University
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- YOSHIDA Hideyuki
- Faculty of Pharmaceutical Sciences, Fukuoka University
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- NOHTA Hitoshi
- Faculty of Pharmaceutical Sciences, Fukuoka University
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- YAMAGUCHI Masatoshi
- Department of Pharmaceutical Sciences, International University of Health and Welfare
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<p>In this paper we describe a highly sensitive and selective LC method for the determination of 5-hydroxyindoles (serotonin, N-acetylserotonin, 5-hydroxyindole-3-acetamide, 5-hydroxytryptophan, 5-hydroxyindole-3-acetic acid, and 5-hydroxytryptophol) through post-column electrochemical derivatization and fluorescence detection. These 5-hydroxyindoles can be separated within 40 min by reversed-phase liquid chromatography using 250 mM acetate buffer/acetonitrile [pH 6.5; 95:5 (v/v)] under conditions of isocratic elution; then they were subjected to electrochemical oxidation with benzylamine to produce their corresponding fluorescent derivatives. We detected these derivatives spectrofluorometrically at 480 nm upon excitation at 345 nm. The detection limits (S/N = 3) of these 5-hydroxyindoles were in the range 3.2–180 fmol per 20-µL injection. </p>
収録刊行物
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- CHROMATOGRAPHY
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CHROMATOGRAPHY 42 (1), 55-60, 2021-02-20
クロマトグラフィー科学会
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詳細情報 詳細情報について
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- CRID
- 1390005822569618048
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- NII論文ID
- 130007993883
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- NII書誌ID
- AA1137755X
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- ISSN
- 13483315
- 13428284
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- NDL書誌ID
- 031325133
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
