Publications

Displaying 51 - 54 of 54

An international assessment of the metrological equivalence of higher-order measurement services for creatinine in serum

April 2, 2012

Author(s)

Johanna Camara, Katrice Lippa, David Duewer, Hugo H. Gasca-Aragon, Blaza Toman

Background: The CCQM-K80 Key Comparison directly assessed the equivalence of many of the world's higher-order value-assigned materials (HOVAMs) for creatinine in human serum. This 2009 international study compared the certified values and uncertainties of

Discrimination Between Wild-Type and Ampicillin-Resistant Escherichia coli by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

October 16, 2008

Author(s)

Johanna Camara

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was optimized to discriminate between wild-type and ampicillin-resistant Escherichia coli. Only ampicillin-resistant E. coli displayed an m/z 29000 peak

Discrimination between Wild-Type and Ampicillin-Resistant Escherichia coli by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

October 1, 2007

Author(s)

Johanna Camara, F. A. Hays

Quantitative Determination of Disaccharide Content in Digested Unfragmented Heparin and Low Molecular Weight Heparin by Direct-Infusion Electrospray Mass Spectrometry

October 1, 2007

Author(s)

Johanna Camara, Mary B. Satterfield, Bryant C. Nelson

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