Fingerprinting of complex hydrocarbon containing mixtures

G - Physics – 01 – N

Patent

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G01N 27/62 (2006.01) G01N 30/72 (2006.01)

Patent

CA 2555359

The invention provides a method of analysing a complex hydrocarbon-containing mixture, the method comprising the steps of: obtaining a liquid sample of the complex hydrocarbon-containing mixture; injecting the sample into a liquid carrier flowing to a mass spectrometer, wherein the mass spectrometer is set so as to ionise molecules in the sample without causing fragmentation thereof; recording a mass spectrum for ions obtained from the sample; and using the mass spectrum to obtain fingerprint of the mixture. In one embodiment, two or more mass spectra are recorded and are combined to obtain a fingerprint of the mixture.

L'invention concerne une méthode d'analyse d'un mélange complexe contenant des hydrocarbures, qui consiste à: mettre en oeuvre un échantillon liquide dudit mélange; injecter l'échantillon dans un support liquide s'écoulant vers un spectromètre de masse, lequel spectromètre de masse est paramétré pour ioniser des molécules présentes dans l'échantillon sans les fragmenter; enregistrer un spectre de masse pour les ions obtenus des échantillons; et exploiter le spectre de masse pour réaliser une cartographie peptidique du mélange. Dans un mode de réalisation, deux ou plusieurs spectres de masse sont enregistrés et combinés pour obtenir une cartographie peptidique du mélange.

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