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Determination of selected UV filters in indoor dust by matrix solid-phase dispersion and gas chromatography-tandem mass spectrometry

Identifieur interne : 000A86 ( Main/Exploration ); précédent : 000A85; suivant : 000A87

Determination of selected UV filters in indoor dust by matrix solid-phase dispersion and gas chromatography-tandem mass spectrometry

Auteurs : N. Negreira [Espagne] ; I. Rodriguez [Espagne] ; E. Rubi [Espagne] ; R. Cela [Espagne]

Source :

Journal of chromatography [ 0021-9673 ] ; 2009.

RBID : Pascal:09-0429092

Descripteurs français

Pascal (Inist)
- Particule en suspension, Filtre UV, Pollution intérieur, Poussière, Matériau référence, Analyse quantitative, Produit antisolaire, Pollution air, Extraction SPE, Chromatographie phase gazeuse, Méthode couplée, Cosmétique, Enrichissement chimique, Préparation échantillon, Analyse trace, Analyse chimique, GC MS MS, Extraction MSPD, Spectrométrie masse tandem.
Wicri :
- topic : Poussière, Analyse quantitative.

English descriptors

KwdEn :
- Air pollution, Chemical analysis, Chemical enrichment, Cosmetic, Coupled method, Dust, Gas chromatography, Indoor pollution, Matrix Solid Phase Dispersion extraction, Quantitative analysis, Reference material, Sample preparation, Solid phase extraction, Sunscreen product, Suspended particle, Tandem mass spectrometry, Trace analysis, Ultraviolet filter.

Abstract

A simple, inexpensive sample preparation procedure, based on the matrix solid-phase dispersion (MSPD) technique, for the determination of six UV filters: 2-ethylhexyl salicylate (EHS), 3,3,5-trimethylcyclohexyl salicylate (Homosalate, HMS), 3-(4-methylbenzylidene) camphor (4-MBC), isoamyl-p-methoxycinnamate (IAMC), 2-ethylhexyl-p-methoxycinnamate (EHMC) and octocrylene (OCR), in dust from indoor environments is presented and the influence of several operational parameters on the extraction performance discussed. Under the final working conditions, sieved samples (0.5 g) were mixed with the same amount of anhydrous sodium sulphate and dispersed with 2 g of octadecyl bonded silica (C18) in a mortar with a pestle. This blend was transferred to a polypropylene solid-phase extraction cartridge containing 2 g of activated silica, as the clean-up co-sorbent. The cartridge was first rinsed with 5 mLofn-hexane and the analytes were then recovered with 4 mL of acetonitrile. This extract was adjusted to 1 mL, filtered and the compounds were determined by gas chromatography combined with tandem mass spectrometry (GC-MS/MS). Recoveries for samples spiked at two different concentrations ranged between 77% and 99%, and the limits of quantification (LOQs) of the method between 10 and 40 ng g^-1. Analysis of settled dust from different indoor areas, including private flats, public buildings and vehicle cabins, showed that EHMC and OCR were ubiquitous in this matrix, with maximum concentrations of 15 and 41 μg g^-1, respectively. Both UV filters were also quantified in dust reference material SRM 2585 for first time. EHS, 4-MBC and IAMC were detected in some of the analyzed samples, although at lower concentrations than EHMC and OCR.

Affiliations:

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to stream Main, to step Curation: 000A86

Le document en format XML

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<term>Analyse quantitative</term>
<term>Produit antisolaire</term>
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<front><div type="abstract" xml:lang="en">A simple, inexpensive sample preparation procedure, based on the matrix solid-phase dispersion (MSPD) technique, for the determination of six UV filters: 2-ethylhexyl salicylate (EHS), 3,3,5-trimethylcyclohexyl salicylate (Homosalate, HMS), 3-(4-methylbenzylidene) camphor (4-MBC), isoamyl-p-methoxycinnamate (IAMC), 2-ethylhexyl-p-methoxycinnamate (EHMC) and octocrylene (OCR), in dust from indoor environments is presented and the influence of several operational parameters on the extraction performance discussed. Under the final working conditions, sieved samples (0.5 g) were mixed with the same amount of anhydrous sodium sulphate and dispersed with 2 g of octadecyl bonded silica (C18) in a mortar with a pestle. This blend was transferred to a polypropylene solid-phase extraction cartridge containing 2 g of activated silica, as the clean-up co-sorbent. The cartridge was first rinsed with 5 mLofn-hexane and the analytes were then recovered with 4 mL of acetonitrile. This extract was adjusted to 1 mL, filtered and the compounds were determined by gas chromatography combined with tandem mass spectrometry (GC-MS/MS). Recoveries for samples spiked at two different concentrations ranged between 77% and 99%, and the limits of quantification (LOQs) of the method between 10 and 40 ng g<sup>-1</sup>
. Analysis of settled dust from different indoor areas, including private flats, public buildings and vehicle cabins, showed that EHMC and OCR were ubiquitous in this matrix, with maximum concentrations of 15 and 41 μg g<sup>-1</sup>
, respectively. Both UV filters were also quantified in dust reference material SRM 2585 for first time. EHS, 4-MBC and IAMC were detected in some of the analyzed samples, although at lower concentrations than EHMC and OCR.</div>
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Determination of selected UV filters in indoor dust by matrix solid-phase dispersion and gas chromatography-tandem mass spectrometry

Determination of selected UV filters in indoor dust by matrix solid-phase dispersion and gas chromatography-tandem mass spectrometry

Source :

Descripteurs français

English descriptors

Abstract

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