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Study of the photoinduced degradation of polycyclic musk compounds by solid‐phase microextraction and gas chromatography/mass spectrometry
Author(s) -
SanchezPrado Lucía,
Lourido Mercedes,
Lores Marta,
Llompart Maria,
GarciaJares Carmen,
Cela Rafael
Publication year - 2004
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1459
Subject(s) - photodegradation , chemistry , solid phase microextraction , mass spectrometry , chromatography , gas chromatography , ultraviolet , extraction (chemistry) , gas chromatography–mass spectrometry , organic chemistry , photocatalysis , physics , quantum mechanics , catalysis
Polycyclic musks are widely used synthetic fragrances that have been identified during the last few years in biota samples and environmental matrices. Nevertheless, there is a lack of information concerning the photodegradation behavior of these compounds. In this work, the photoinduced degradation of six polycyclic musk compounds (Cashmeran, Celestolide, Phantolide, Galaxolide, Traseolide and Tonalide) was studied using a solid‐phase microextraction (SPME) fiber as support. Musk fragrances were extracted from aqueous solutions using SPME fibers that were subsequently exposed to ultraviolet (UV) irradiation for different times. To study the degradation kinetics and to tentatively identify the photoproducts generated, gas chromatography coupled to ion trap mass spectrometry was used. Aqueous photodegradation studies were also performed. The on‐fiber photodegradation approach avoids the need for further extraction processes and makes the identification of photoproducts easier, due to their higher concentration on the fibers. All musk compounds were easily photodegraded, suggesting that UV irradiation could work as a decontamination tool for these musks. Copyright © 2004 John Wiley & Sons, Ltd.