Identification and fragmentation pathways of caffeine metabolites in urine samples via liquid chromatography with positive electrospray ionization coupled to a hybrid quadrupole linear ion trap (LTQ) and Fourier transform ion cyclotron resonance mass spectrometry and tandem mass spectrometry
2009 ◽
Vol 23
(7)
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pp. 1065-1074
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2009 ◽
Vol 23
(13)
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pp. 1927-1933
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2011 ◽
Vol 25
(13)
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pp. 1817-1826
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2004 ◽
Vol 18
(22)
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pp. 2682-2690
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2007 ◽
Vol 32
(1)
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pp. 51-57
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