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Trace determination of caffeine in surface water samples by liquid chromatography–atmospheric pressure chemical ionization–mass spectrometry (LC–APCI–MS)

✍ Scribed by Piero R Gardinali; Xu Zhao


Book ID
117322880
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
355 KB
Volume
28
Category
Article
ISSN
0160-4120

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The method for simultaneous determination of cocaine and its four metabolites (benzoylecgonine, ecgonine methyl ester, ecgonine and norcocaine) in urine by liquid chromatography/atmospheric pressure chemical ionization-mass spectrometry (LC/APCI-MS) was studied. The mass spectra showed the quasi-mol