A rapid method for the analysis of methyl dihydrojasmonate and galaxolide in indoor and outdoor air particulate matter

•Analytical procedure allows the quantification of synthetic fragrances (HHCB and MDHJ) PM filter samples in combination with other organic molecular tracers.•Determination of synthetic fragrances in indoor and outdoor urban PM, including background and busy street sites, school classrooms and subwa...

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Bibliographic Details
Published in:Journal of Chromatography A 2016-05, Vol.1447, p.135-140
Main Authors: Fontal, Marta, van Drooge, Barend L., Grimalt, Joan O.
Format: Article
Language:English
Subjects:
Cleaning
Derivatives
Fragrances
Galaxolide
GC-EI-MS
Hydroxyl groups
Indoor
Indoor air
Liquids
Methyl dihydrojasmonate
Outdoor
Outdoor air
Particulate matter
Streets
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Summary:•Analytical procedure allows the quantification of synthetic fragrances (HHCB and MDHJ) PM filter samples in combination with other organic molecular tracers.•Determination of synthetic fragrances in indoor and outdoor urban PM, including background and busy street sites, school classrooms and subway stations in a developed urban area.•HHCB and MDHJ were quantified in all samples with highest concentrations in indoor samples.•The determination of synthetic fragrances increases the insight on influence of anthropogenic activities on the organic aerosol. A method for the analysis of methyl dihydrojasmonate (MHDJ) in air particulate matter (PM1 and PM2.5) is described for the first time. This fragrance is determined together galaxolide (HHCB). Airborne particles were collected by filtration of air volumes between 100 and 1000m3. Recovery efficiencies of filter extraction with Soxhlet and pressurized liquids were evaluated. The method included reaction with BSTFA:TMCS for generation of trimethylsilyloxy derivatives which prevented deleterious effects in the gas capillary column by interaction of hydroxyl groups from air constituents other than these fragrances. This step avoided the use of additional clean up methods such as liquid column chromatography affording direct quantification by GC-EI-MS. The proposed method had enough sensitivity for quantification of these fragrances in indoor and outdoor environmental samples using small aliquots of the PM extracts, e.g. 2.5%, and therefore saving sample material for eventual determination of other compounds. The detection limits were 0.03ng and 0.01ng for MHDJ and HHCB, respectively. Both MHDJ and HHCB were predominantly found in the smallest PM fraction analyzed (
ISSN:0021-9673
DOI:10.1016/j.chroma.2016.04.028