Carboxylic acid 5-hydroxytryptamides have been determined by reversed-phase high performanceliquid chromatography with isocratic elution and fluorimetric detection (λex 280 nm, λem 340 nm). The procedure described involves the direct injection into the HPLC systemof the solution obtained by ultrasonic extractionof the coffee. The results obtained were compared with those obtained by procedures proposed in the literature. The method was applied to different typesof coffee (raw, roasted, decaffeinated and dewaxed). A purification method for determining tracesof C-5-HT present in coffee infusions is also described.
Rapid liquid chromatographic analysis of carboxylic acid-5-hydroxytryptamides in coffee / Lagana', Aldo; L., Curini; DE ANGELIS CURTIS, Simonetta Carla Benedett; Marino, Aldo. - In: CHROMATOGRAPHIA. - ISSN 0009-5893. - STAMPA. - 28:11/12(1989), pp. 593-596. [10.1007/BF02260684]
Rapid liquid chromatographic analysis of carboxylic acid-5-hydroxytryptamides in coffee
LAGANA', Aldo;DE ANGELIS CURTIS, Simonetta Carla Benedett;MARINO, Aldo
1989
Abstract
Carboxylic acid 5-hydroxytryptamides have been determined by reversed-phase high performanceliquid chromatography with isocratic elution and fluorimetric detection (λex 280 nm, λem 340 nm). The procedure described involves the direct injection into the HPLC systemof the solution obtained by ultrasonic extractionof the coffee. The results obtained were compared with those obtained by procedures proposed in the literature. The method was applied to different typesof coffee (raw, roasted, decaffeinated and dewaxed). A purification method for determining tracesof C-5-HT present in coffee infusions is also described.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
