Specificity and selectivity improvement in doping analysis using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry

Comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry was used for the identification of forty doping agents. The improvement in the specificity was remarkable, allowing the resolution of analytes that could not be done by one-dimensional chromatographic syst...

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Published in:Química Nova 2012, Vol.35 (5), p.982-987
Main Authors: Barbosa, Samantha S., Leal, Felipe D., Padilha, Monica C., Silva, Raphael S. F., Pereira, Henrique Marcelo G., Aquino Neto, Francisco R., Silva Júnior, Ademário I. da
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Language:English
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CHEMISTRY, MULTIDISCIPLINARY
comprehensive two-dimensional gas chromatography
doping analysis
time-of-flight
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container_end_page 987
container_issue 5
container_start_page 982
container_title Química Nova
container_volume 35
creator Barbosa, Samantha S.
Leal, Felipe D.
Padilha, Monica C.
Silva, Raphael S. F.
Pereira, Henrique Marcelo G.
Aquino Neto, Francisco R.
Silva Júnior, Ademário I. da
description Comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry was used for the identification of forty doping agents. The improvement in the specificity was remarkable, allowing the resolution of analytes that could not be done by one-dimensional chromatographic systems. The sensitivity observed for different classes of prohibited substances was clearly below the value required by the World Anti-Doping Agency. In addition time-of-flight mass spectrometry gives full spectrum for all analytes without any interference from the matrix, resulting in selectivity improvements. These results could support the implementation of an exhaustive monitoring approach for hundreds of doping agents in a single injection.
doi_str_mv 10.1590/S0100-40422012000500022
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subjects CHEMISTRY, MULTIDISCIPLINARY
comprehensive two-dimensional gas chromatography
doping analysis
time-of-flight
title Specificity and selectivity improvement in doping analysis using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry
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