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	1.	Femtomole detection of amino acids and dipeptides by gas chromatography-negative-ion chemical ionization mass spectrometry following alkylation with pentafluorobenzyl bromide. [electronic resource] by Márquez, C D Weintraub, S T Smith, P C Producer: 19950213 In: Journal of chromatography. B, Biomedical applications vol. 658 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Quantitative analysis of two opioid peptides in plasma by liquid chromatography-electrospray ionization tandem mass spectrometry. [electronic resource] by Márquez, C D Weintraub, S T Smith, P C Producer: 19970828 In: Journal of chromatography. B, Biomedical sciences and applications vol. 694 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Quantitative analysis of exogenous peptides in plasma using immobilized enzyme cleavage and gas chromatography-mass spectrometry with negative ion chemical ionization. [electronic resource] by Márquez, C D Lee, M L Weintraub, S T Smith, P C Producer: 19980206 In: Journal of chromatography. B, Biomedical sciences and applications vol. 700 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Reaction of acyl glucuronides with insulin in vitro: identification of an imine mechanism by electrospray ionization mass spectrometry. [electronic resource] by Liu, J H Marquez, C D Weintraub, S T Smith, P C Producer: 19980428 In: Pharmaceutical research vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)