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Nutrition (Burbank, Los Angeles County, Calif.)|September 1, 1995
Neuroblastoma screening: labeling of HVA and VMA for stable isotope dilution gas chromatography-mass spectrometryH Gleispach, E Huber, G Fauler, et al.Biological Mass Spectrometry|October 1, 1994
Quantitative measurement of amphetamine in human plasma by gas chromatography/negative ion chemical ionization mass spectrometry using (2H5)amphetamine as internal standardH J Leis, W Windischhofer, R WintersteigerJournal of Mass Spectrometry : JMS|May 1, 1996
Stable isotope labelling and determination of ketroprofen in human plasma and urine by gas chromatography/negative ion chemical ionization mass spectrometryH J Leis, M Leis, W WindischhoferJournal of Mass Spectrometry : JMS|May 1, 1997
Determination of homovanillic acid and vanillylmandelic acid in neuroblastoma screening by stable isotope dilution GC-MSG Fauler, H J Leis, E Huber, et al.Rapid Communications in Mass Spectrometry : RCM|March 29, 2002
Gas chromatography/negative-ion chemical ionisation mass spectrometry for the quantitative analysis of morphine in human plasma using pentafluorobenzyl carbonate derivativesH J Leis, W Windischhofer, G FaulerJournal of Chromatography. B, Biomedical Sciences and Applications|September 14, 2000
Quantitative analysis of morphine in human plasma by gas chromatography-negative ion chemical ionization mass spectrometryH J Leis, G Fauler, G Raspotnig, et al.Rapid Communications in Mass Spectrometry : RCM|May 27, 1999
An improved method for the measurement of the angiotensin-converting enzyme inhibitor lisinopril in human plasma by stable isotope dilution gas chromatography/negative ion chemical ionization mass spectrometryH J Leis, G Fauler, G Raspotnig, et al.Rapid Communications in Mass Spectrometry : RCM|November 10, 1998
Quantitative determination of the angiotensin-converting enzyme inhibitor lisinopril in human plasma by stable isotope dilution gas chromatography/negative ion chemical ionization mass spectrometryH J Leis, G Fauler, G Raspotnig, et al.Journal of Mass Spectrometry : JMS|September 28, 2000
Negative ion chemical ionization for the determination of methylphenidate in human plasma by stable isotope dilution gas chromatography/mass spectrometryH J Leis, G Fauler, G Raspotnig, et al.Biomedical & Environmental Mass Spectrometry|December 1, 1988
Femtomole analysis of diclofenac in human plasma by gas chromatography/negative ion chemical ionization mass spectrometry using (18O2) diclofenac as internal standardH J Leis, H Gleispach, V Nitsche, et al.Pageof 94