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HERO ID
1597683
Reference Type
Journal Article
Title
Quantitative analysis of organophosphate and pyrethroid insecticides, pyrethroid transformation products, polybrominated diphenyl ethers and bisphenol A in residential surface wipe samples
Author(s)
Clifton, MS; Wargo, JP; Weathers, WS; Colón, M; Bennett, DH; Tulve, NS
Year
2013
Is Peer Reviewed?
Yes
Journal
Journal of Chromatography A
ISSN:
0021-9673
EISSN:
1873-3778
Publisher
ELSEVIER SCIENCE BV
Location
AMSTERDAM
Volume
1273
Page Numbers
1-11
Language
English
PMID
23265991
DOI
10.1016/j.chroma.2012.11.003
Web of Science Id
WOS:000314258100001
Abstract
Surface wipe sampling is a frequently used technique for measuring persistent pollutants in residential environments. One characteristic of this form of sampling is the need to extract the entire wipe sample to achieve adequate sensitivity and to ensure representativeness. Most surface wipe methods require collection of multiple samples for related chemicals or chemical classes having similar physiochemical properties. In an effort to analyze a broad suite of pollutants collected from a single surface wipe sample, we developed a new method for the analysis of selected organophosphate and pyrethroid insecticides, pyrethroid transformation products (TPs), bisphenol A (BPA) and polybrominated diphenyl ethers (PBDEs). This is the first time this suite of compounds has been analyzed from a single indoor wipe sample because of the issues uniquely related to these sample types, namely high levels of interfering compounds such as phthalate esters and other residues found in the indoor environment. This new method uses extraction via sonication followed by solvent exchange into hexane, clean-up and liquid/liquid extraction. The extract portion containing insecticides and PBDEs is further purified using solid phase extraction prior to concentration and analysis. The portion containing BPA and TPs is solvent exchanged into ethyl acetate before concentration and derivatization with 99:1 trimethylsilyl 2,2,2-trifluoro-N-(trimethylsilyl)acetimidate:chlorotrimethylsilane. Wipe extract sub-classes were then analyzed by GC/MS in electron impact mode for insecticides, BPA and TPs while negative chemical ionization mode was employed for PBDEs. Method detection limits were <16.4 pg/cm(2) for all compounds with most being <5 pg/cm². Over 400 samples, including QA/QC samples, were analyzed with mean surrogate recoveries ranging from 76 to 95%. The most frequently detected chemicals from our suite were chlorpyrifos, permethrin, bisphenol A, BDE-47, BDE-99 and BDE-100. Permethrin (107 pg/cm² on floors and 18 pg/cm² on windows) and bisphenol A (110 pg/cm² on floors and 6.8 pg/cm² on windows) had the highest concentrations measured in the wipe samples. Results from the method evaluation and routine sample analysis are presented.
Keywords
Multiresidue analysis by GC/MS; Insecticides and transformation products; Polybrominated diphenyl ethers; Bisphenol A; Residential surface wipe samples
Tags
IRIS
•
Phthalates – Targeted Search for Epidemiological Studies
Source – all searches
Pubmed
WOS
Toxnet
Excluded
Source – no date limit through June 2013 (Private)
Pubmed
WOS
ToxNet
Source - Dec 2013 Update (Private)
WOS
ToxNet
Source - Jun 2014 Update (Private)
WOS
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