Imperial College London
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DrLeonBarron

Faculty of Medicine, School of Public Health

Reader in Analytical & Environmental Sciences
 
 
 
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Contact

 

leon.barron

 
 
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Location

 

Norfolk PlaceSt Mary's Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rapp-Wright:2017:10.1016/j.jhazmat.2017.01.008,
author = {Rapp-Wright, H and McEneff, G and Murphy, B and Gamble, S and Morgan, R and Beardah, M and Barron, L},
doi = {10.1016/j.jhazmat.2017.01.008},
journal = {Journal of Hazardous Materials},
pages = {11--21},
title = {Suspect screening and quantification of trace organic explosives in wastewater using solid phase extraction and liquid chromatography-high resolution accurate mass spectrometry},
url = {http://dx.doi.org/10.1016/j.jhazmat.2017.01.008},
volume = {329},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 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 0.026–23 μg L−1 with R2 ≥ 0.98 for most compounds. The method was applied to eight 24-h composite wastewater samples from a London wastewater works and one compound, 2,4-dinitrotoluene, was determined over five days between 332 and 468 g day−1 (225–303 ng L−1). To further exploit the suspect screening capability, 17 additional explosives, precursors and transformation products were screened in spiked wastewater samples. Of these, 14 were detected with recoveries from 62 to 92%, highlighting the broad applicability of the method. To our knowledge, this represents the first screen of explosives-related compounds in wastewater from a major European city. This method also allows post-analysis detection of new or emerging compounds using full-scan HRMS datasets to potentially identify and locate illegal manufacture of explosives via wastewater analysis.
AU  - Rapp-Wright,H
AU  - McEneff,G
AU  - Murphy,B
AU  - Gamble,S
AU  - Morgan,R
AU  - Beardah,M
AU  - Barron,L
DO  - 10.1016/j.jhazmat.2017.01.008
EP  - 21
PY  - 2017///
SN  - 0304-3894
SP  - 11
TI  - Suspect screening and quantification of trace organic explosives in wastewater using solid phase extraction and liquid chromatography-high resolution accurate mass spectrometry
T2  - Journal of Hazardous Materials
UR  - http://dx.doi.org/10.1016/j.jhazmat.2017.01.008
UR  - http://www.scopus.com/inward/record.url?scp=85010002503&partnerID=8YFLogxK
UR  - https://www.sciencedirect.com/science/article/pii/S0304389417300109?via%3Dihub
VL  - 329
ER  -
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