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Title

Analysis of tetrapyrrolic pigments and derivatives in sediments by high performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometry

Authors
Riffé-Chalard, Catherine
Kloeti, Werner
Published in Fresenius' Journal of Analytical Chemistry. 1999, vol. 364, no. 3, p. 249-253
Abstract A new application is described of the on-line high-performance liquid chromatography/positive and negative ion atmospheric pressure chemical ionization mass spectrometry (APCI(+/–)-MS) to the identification of tetrapyrrolic compounds in sediment samples containing complex mixtures of natural pigments and their diagenetic products. The method relies on the production of radical anions in order to determine the molecular masses of the molecules which yield abundant fragment ions when analyzed in the positive mode. This approach allows to verify the occurrence of coeluting components by examining their negative ion spectra and to complete their identification on the basis of their fragment ions produced in the positive ion spectra.
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Research group Groupe Gülaçar
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VERZEGNASSI, Ludovica et al. Analysis of tetrapyrrolic pigments and derivatives in sediments by high performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometry. In: Fresenius' Journal of Analytical Chemistry, 1999, vol. 364, n° 3, p. 249-253. https://archive-ouverte.unige.ch/unige:2745

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Deposited on : 2009-09-21

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