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Clinical Chemistry|March 1, 1990
Improved sample preparation in determination of urinary metanephrines by liquid chromatography with electrochemical detectionR N GuptaJournal of Chromatography. B, Biomedical Applications|November 18, 1994
Column liquid chromatographic determination of paroxetine in human serum using solid-phase extractionR N GuptaJournal of Neuroimmunology|June 1, 1985
Glial fibrillary acidic protein (GFAP): the major protein of glial intermediate filaments in differentiated astrocytesL F EngJournal of Chromatography. B, Biomedical Applications|August 5, 1994
Column liquid chromatographic determination of bupivacaine in human serum using solid-phase extractionR N Gupta, A DauphinJournal of Chromatography|November 8, 1985
Liquid chromatographic determination of mexiletine and tocainide in human plasma with fluorescence detection after reaction with a modified o-phthalaldehyde reagentR N Gupta, M LewClinical Biochemistry|April 1, 1986
The role of the laboratory in acute poisoning: case historiesN Wright, R N GuptaClinica Chimica Acta; International Journal of Clinical Chemistry|October 31, 1985
Liquid chromatographic determination of inhibition of monoamine oxidase activity in platelet rich plasma of depressed patients treated with phenelzineR N Gupta, M SteinerJournal of Chromatography|November 6, 1992
Determination of plasma homovanillic acid by liquid chromatography with electrochemical detectionR N Gupta, C WheltonThe Anatomical Record|October 1, 1992
Morphology of the bile ducts of the brook lamprey, Lampetra lamottenii (Le Sueur) before and during infection with the nematode, Truttaedacnitis stelmioides (Vessichelli, 1910) (Nematoda: Cucullanidae)F Eng, J H YousonPageof 25