Direct Determination of Platelet-Produced Thromboxane B_2 in Human Serum by Column-Switching High-Performance Liquid Chromatography with Fluorescence Detection

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抄録

A high-performance liquid chromatographic method for the direct determination of platelet-produced thromboxane B2 in human serum is described. The method is based on direct derivatization of the thromboxane B2 in human serum with 6,7-dimethoxy-1-methyl-2(1H)-quinoxalinone-3-propionyl carboxylic acid hydrazide. The derivatization reaction proceeds in aqueous solution (or serum sample) in the presence of pyridine and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide at 37°C. The resulting fluorescent derivative of thromboxane B2 is separated by column-switching chromatography using a first column (YMC-Pack C4) for the trap and clean-up of the derivative and a second column (YMC-Pack Ph) for complete separation of the derivative. The derivative is detected spectrofluorometrically at 445 nm with excitation at 367 nm. The detection limit (signal to noise ratio=3) for thromboxane B2 is 10 pmol (3.7 ng)/ml serum. The present method is highly sensitive and simple without any clean-up, such as in conventional liquid-liquid and solid-phase extraction.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 16(1), 45-48, 2000-01-10

    社団法人 日本分析化学会

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各種コード

  • NII論文ID(NAID)
    10004704642
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    4966621
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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