Search Results - "Murphy, Constance M"

Matrix effect in bio-analysis of illicit drugs with LC-MS/MS: influence of ionization type, sample preparation, and biofluid by Dams, Riet, Huestis, Marilyn A, Lambert, Willy E, Murphy, Constance M

“…The purpose of the present work was to evaluate the synergistic effect of ionization type, sample preparation technique, and bio-fluid on the presence of…”
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Determination of methadone, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, 2-ethyl-5-methyl-3,3-diphenylpyraline and methadol in meconium by liquid chromatography atmospheric pressure chemical ionization tandem mass spectrometry by Choo, Robin E., Murphy, Constance M., Jones, Hendrée E., Huestis, Marilyn A.

“…This paper details a validated liquid chromatography atmospheric pressure chemical ionization tandem mass spectrometry (LC–APCI–MS/MS) method for the…”
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LC-ESI-MS/MS analysis for the quantification of morphine, codeine, morphine-3-β-D-glucuronide, morphine-6-β-D-glucuronide, and codeine-6-β-D-glucuronide in human urine by Murphy, Constance M., Huestis, Marilyn A.

“…A liquid chromatographic‐electrospray ionization‐tandem mass spectrometric method for the quantification of the opiates morphine, codeine, and their…”
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Urine drug testing for opioids, cocaine, and metabolites by direct injection liquid chromatography/tandem mass spectrometry by Dams, Riet, Murphy, Constance M., Lambert, Willy E., Huestis, Marilyn A.

“…A sensitive and specific liquid chromatography/tandem mass spectrometry (LC/MS/MS) method for the simultaneous quantification of opioids, cocaine, and…”
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Liquid chromatographic/electrospray ionization tandem mass spectrometric analysis for the quantification of buprenorphine, norbuprenorphine, buprenorphine-3-β-D-glucuronide and norbuprenorphine-3-β-D-glucuronide in human plasma by Murphy, Constance M., Huestis, Marilyn A.

“…A liquid chromatographic/electrospray ionization tandem mass spectrometric method for the quantification of the synthetic opiate buprenorphine (BUP),…”
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LC−Atmospheric Pressure Chemical Ionization-MS/MS Analysis of Multiple Illicit Drugs, Methadone, and Their Metabolites in Oral Fluid Following Protein Precipitation by Dams, Riet, Murphy, Constance M., Choo, Robin E., Lambert, Willy E., De Leenheer, Andre P., Huestis, Marilyn A.

“…A quantitative LC−APCI-MS/MS method for simultaneous determination of multiple illicit drugs, methadone, and their metabolites in oral fluid was developed and…”
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Recognition of trypsin autolysis products by high-performance liquid chromatography and mass spectrometry by Vestling, Martha M, Murphy, Constance M, Fenselau, Catherine

“…Potential artifactual contributions are assessed in high-pressure liquid chromatograms and fast atom bombardment mass spectra from autolysis of different…”
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Preparative separation of isomeric sulfophthalic acids by conventional and pH-zone-refining counter-current chromatography by Weisz, Adrian, Mazzola, Eugene P, Murphy, Constance M, Ito, Yoichiro

“…Two modes of high-speed counter-current chromatography (HSCCC) were applied to separate 3- and 4-sulfophthalic acid from a mixture. Conventional HSCCC was…”
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Recognition of the Carboxy-Terminal Peptide in Cyanogen Bromide Digests of Proteins by Murphy, Constance M., Fenselau, Catherine

“…A method that allows carboxy-terminal peptides to be recognized in cyanogen bromide cleavage reactions is described. Recognition is based on mass spectrometric…”
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LC-ESI-MS/MS analysis for the quantification of morphine, codeine, morphine-3-β-D-glucuronide, morphine-6-β-D-glucuronide, and codeine-6-β-D-glucuronide in human urine J. Mass Spectrom. 2005; 40: 1412-1416 by Murphy, Constance M., Huestis, Marilyn A.

“…The original article to which this Erratum refers was published in Journal of Mass Spectrometry 40, 2005, 1412–1416. Copyright © 2006 John Wiley & Sons, Ltd…”
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Formation of heme-derived products by the reaction of ferrous deoxymyoglobin with bromotrichloromethane by Osawa, Yoichi, Highet, Robert J, Murphy, Constance M, Cotter, Robert J, Pohl, Lance R

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Use of Adjustable-Gap On-Line and Off-Line Slit Rheometers for the Characterization of the Wall Slip and Shear Viscosity Behavior of Energetic Formulations by Kalyon, Dilhan M., Gevgilili, Halil, Kowalczyk, James E., Prickett, Suzanne E., Murphy, Constance M.

“…It is difficult to characterize the rheological behavior of energetic suspensions due to their viscoplasticity and wall slip. The use of the rectangular slit…”
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Isolation and Characterization of Proteins from Human Lymphocyte Nuclei Using Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry and Post-source Decay Analysis by Nilsson, Carol L., Murphy, Constance M., Ekman, Rolf

“…The cell nucleus plays an essential role in all aspects of cell function, including DNA replication, gene transcription, RNA processing and cell division…”
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Primary structure of molluscan metallothioneins deduced from PCR-amplified cDNA and mass spectrometry of purified proteins by Unger, M E, Chen, T T, Murphy, C M, Vestling, M M, Fenselau, C, Roesijadi, G

“…The primary structure of metallothioneins (MT) of a mollusc, the oyster Crassostrea virginica, was determined by molecular cloning and mass spectrometry of…”
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Structural characterization of the primary sequence of equine liver glutathione S-transferase by Murphy, Constance M

“…Glutathione S-transferases (GSTs) are a diverse group of enzymes that catalyze the nucleophilic attack of glutathione in the cells defence against xenobiotic…”
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Fragmentation characteristic of glutathione conjugates activated by high-energy collisions by Murphy, Constance M., Fenselau, Catherine, Gutierrez, Peter L.

“…Product ion spectra of fifteen monoglutathione and diglutathione conjugates have been measured using activation by 6000-eV collisions with helium in the third…”
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Structure and time-dependent behavior of acetylated and non-acetylated forms of a molluscan metallothionein by Roesijadi, G, Vestling, M M, Murphy, C M, Klerks, P L, Fenselau, C C

“…Cadmium-induced metallothionein in a mollusc, the oyster Crassostrea virginica, occurs in both blocked and unblocked forms (Roesijadi, G., Kielland, S.L. and…”
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Formation of heme-derived products by the reaction of ferrous deoxymyoglobin with BrCCl3 by OSAWA, Y, HIGHET, R. J, MURPHY, C. M, COTTER, R. J, POHL, L. R

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Mass balance strategy for protein sequencing. Application to a protein with an extended DNPNNP repeating motif by Hua, S, Vestling, M M, Murphy, C M, Bryant, D K, Height, J J, Fenselau, C, Theibert, J, Collins, J H

“…The value of the mass balance strategy is illustrated in the sequence determination of S. aureus V8 protease. Capillary electrophoresis, electrospray mass…”
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