2008, Volume 11, Issue 21+22
Natural Juices Authentification by GC-MS
1 „Babes-Bolyai” University, Str. M. Kogalniceanu, Nr. 1, Cluj-Napoca, 400084, Romania
2 National R&D Institute of Cryogenics and Isotopic Technologies – ICSI Rm. Valcea, Research & Development Department – ICSI Rm. Valcea
A simple and rapid GC-MS method for the detection of adulteration of natural fruit juices is presented. The method consists of the analysis of sterol patterns and it is a useful rapid approach for the fruit juices control by GC-MS.
A GC-MS analytical method is described for some natural juices analysis. The fingerprint of sterols was used to characterize the natural juice. The fruit juice was extract by using hexane (or petrol ether) as a solvent. The fruit juice extracts are separated on a Rtx-5MS capillary column, 15 m x 0.25 mm, 0.25µm film thickness, using a 24 min temperature program from 50°C (1min), 10°C/min to 300° in the SCAN mode. The following conditions were followed: transfer line temperature: 250°C; injector temperature: 250°C; ion source temperature 250°C; Splitter: 10:1. Electron energy was 70eV and emission current 100µA.
Adulteration, sterols, GC-MS.
Tag search Adulteration sterols GC-MS