胆石中無機カルシウム塩の赤外線吸収スペクトル分析による定量分析法の検討

DOI 被引用文献3件 参考文献19件

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  • Quantitative determination of calcium carbonate and calcium phosphate in gallstone by infrared spectroscopy

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Attempts were made at a simple, rapid and precise determination of calcium carbonate (aragonite and calcite) and calcium phosphate in gallstone by means of infrared spectroscopy. The KBr-disk method was adopted for this purpose, the absorbance being calculated according to the base-line method. Of a number of absorptions characteristic of calcium carbonate and calcium phosphate, the 853 cm-1 band for aragonite, the 874 cm-1 band for calcite, the 1,040 cm-1 band for hydroxyapatite (the predominant form of calcium phosphate) were determined to be most suitable for the key band of these compounds in view of its satisfactory intensity, perfect coexisting substances. The concentration of calcium carbonate and calcium phosphate in gallstone specimens as determined by this method fell in between analytical data obtained by chemical method, assuring the accuracy of this spectroscopic method.

収録刊行物

  • Tando

    Tando 10 (5), 369-378, 1996

    Japan Biliary Association

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