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Author: Karen Phinney

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1. Development of a Standard Reference Material for Metabolomics Research
Published: 11/4/2013
Authors: Karen W Phinney, Guillaume Ballihaut, Mary Bedner, Johanna Camara, Steven J Christopher, William C Davis, Nathan G. Dodder, Brian E Lang, Stephen E Long, Mark S Lowenthal, Elizabeth A. McGaw, Karen E Murphy, Bryant C Nelson, Jocelyn L. Prendergast, Jessica L Reiner, Catherine A Rimmer, Lane C Sander, Michele M Schantz, Katherine E Sharpless, Lorna Tregoning Sniegoski, Susan Shu Cheng Tai, Jeanice M Brown Thomas, Thomas W Vetter, Michael James Welch, Stephen A Wise, Laura J Wood, William F Guthrie, Robert Charles Hagwood, Stefan D Leigh, James H Yen, Nien F Zhang, Madhu Chaurhary-Webb, Huiping Chen, Bridgette Haynes, Donna J LaVoie, Leslie F McCoy, Shahzad S Momin, Neelima Paladugula, Elizabeth C Pendergrast, Christine M Pfeiffer, Carissa D Powers, Zia Fazili-Qari, Daniel Rabinowitz, Michael E Rybak, Rosemary L Schleicher, Mary Xu, Mindy Zhang, Arthur L Castle, Brandi S Benford, Gauthier Eppe

2. Metabolite Profiling of a NIST Standard Reference Material for Human Plasma (SRM 1950) ‹ GC/MS, LC/MS, NMR and Clinical Laboratory Analyses, Libraries and Web-based resources
Published: 10/22/2013
Authors: Yamil Simon, Mark S Lowenthal, Lisa Ervin Kilpatrick, Maureen L Sampson, Kelly H Telu, Paul A Rudnick, William Gary Mallard, Daniel W Bearden, Tracey Beth schock Schock, Dmitrii V Tchekhovskoi, Niksa Blonder, Xinjian Yan, Yuxue (Yuxue) Liang, Yufang Zheng, William E Wallace III, Pedatsur Neta, Karen W Phinney, Alan T. Remaley, Stephen E Stein
Abstract: Recent progress in metabolomics and the development of increasingly sensitive analytical techniques have renewed interest in global profiling, i.e., semi-quantitative monitoring of all chemical constituents of biological fluids. In this work, we have ...

3. Universal Proteolysis and MSn for N- and O- Glycan Branching Analysis
Published: 4/20/2013
Authors: John E Schiel, Karen W Phinney, Nicholas J Smith
Abstract: The continually growing list of critical glycosylation-related processes has made analytical methodology for detailed glycan characterization an area of increasing interest. Glycosylation is a post translational modification of unsurpassed comple ...

4. Determination of fortified and endogenous folates in food-based Standard Reference Materials by liquid chromatography-tandem mass spectrometry
Published: 1/26/2013
Authors: Johanna Camara, Mark S Lowenthal, Karen W Phinney
Abstract: The National Institute of Standards and Technology (NIST) is developing a wide variety of Standard Reference Materials (SRMs) to support measurements of vitamins and other nutrients in foods. Previously, NIST has provided SRMs with values assigned f ...

5. Developing qualitative LC-MS methods for characterization of Vaccinium berry Standard Reference Materials
Published: 9/2/2012
Authors: Mark S Lowenthal, Melissa Meaney Phillips, Catherine A Rimmer, Paul A Rudnick, Yamil Simon, Stephen E Stein, Karen W Phinney

6. Development and Comparison of Three LC-APCI/MS Methods for Determining Vitamin D Metabolites in Human Serum
Published: 4/5/2012
Authors: Mary Bedner, Karen W Phinney
Abstract: Liquid chromatographic methods with atmospheric pressure chemical ionization mass spectrometry were developed for the determination of the vitamin D metabolites 25-hydroxyvitamin D2 (25(OH)D2), 25-hydroxyvitamin D3 (25(OH)D3), and 3-epi-25-hydroxyvit ...

7. Development and Certification of a Standard Reference Material for Vitamin D Metabolites in Human Serum
Published: 12/5/2011
Authors: Karen W Phinney, Mary Bedner, Susan Shu Cheng Tai, Veronica V Vamathevan, Lane C Sander, Katherine E Sharpless, Stephen A Wise
Abstract: The National Institute of Standards and Technology (NIST), in collaboration with the National Institutes of Health‰s Office of Dietary Supplements (NIH-ODS) has developed a Standard Reference Material (SRM) for the determination of 25-hydroxyvitamin ...

8. Biopharmaceutical Glycoanalysis: Comparison of Nonspecific Pronase Digestion and 2-AB Labeled Glycan LC-MS/MS
Published: 11/29/2011
Authors: John E Schiel, Hua-Jun He, Karen W Phinney, Jennifer Au
Abstract: Glycosylation, the enzymatic addition of carbohydrates to a protein, is one of the most abundant post-translational modifications found in nature. There is variability in the number, location, and identity of glycans attached. As a result, a glycopro ...

9. Determination of perfluorinated compounds in human plasma and serum Standard Reference Materials using independent analytical methods
Published: 10/31/2011
Authors: Jessica L Reiner, Karen W Phinney, Jennifer M Keller
Abstract: Perfluorinated compounds (PFCs) were measured in three National Institute of Standards and Technology Standard Reference Materials (SRMs 1950 Metabolites in Human Plasma, SRM 1957 Organic Contaminants in Non-fortified Human Serum, and SRM 1958 Organi ...

10. Development of a Candidate Reference Measurement Procedure for the Determination of Phenytoin, Phenobarbital, Lamotrigine, and Topiramate in Human Serum Using Isotope-Dilution Liquid Chromotography/Tandem Mass Spectrometry
Published: 8/28/2011
Authors: Susan Shu Cheng Tai, Karen W Phinney, Chia-Yi Yeh
Abstract: Phenytoin (PHT), phenobarbital (PHB), lamotrigine (LTG), and topiramate (TPM) are some of the most widely used antiepileptic drugs (AEDs). Monitoring of their concentrations in serum is important for the treatment of epilepsy. A candidate reference m ...

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