- Suspect screening and quantification of trace organic explosives in wastewater using solid phase extraction and liquid chromatography-high resolution accurate mass spectrometry.
Suspect screening and quantification of trace organic explosives in wastewater using solid phase extraction and liquid chromatography-high resolution accurate mass spectrometry.
Journal of hazardous materials (2017-01-26)
Helena Rapp-Wright, Gillian McEneff, Bronagh Murphy, Sally Gamble, Ruth Morgan, Matthew Beardah, Leon Barron
PMID28119193
ABSTRACT
The first comprehensive assessment of 34 solid phase extraction sorbents is presented for organic explosive residues in wastewater prior to analysis with liquid chromatography-high resolution accurate mass spectrometry (LC-HRMS). A total of 18 explosives were selected including nitramines, nitrate esters, nitroaromatics and organic peroxides. Three polymeric divinylbenzene-based sorbents were found to be most suitable and one co-polymerised with n-vinyl pyrrolidone offered satisfactory recoveries for 14 compounds in fortified wastewater (77-124%). Limits of detection in matrix ranged from 0.026-23μgL
MATERIALS
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Brand
Product Description
Sigma-Aldrich
2-(Diisopropylamino)ethyl methacrylate, 97%, contains ~100 ppm monomethyl ether hydroquinone as inhibitor