Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Robin H. J. Kemperman"'
Publikováno v:
Analytical and Bioanalytical Chemistry. 414:5549-5559
Publikováno v:
Journal of the American Society for Mass Spectrometry. 31:355-365
Novel synthetic anabolic androgenic steroids have been developed not only to dodge current antidoping tests at the professional sports level, but also for consumption by noncompetitive bodybuilders. These novel anabolic steroids are commonly referred
Publikováno v:
Analytical and bioanalytical chemistry. 414(18)
The vast majority of mass spectrometry (MS)-based metabolomics studies employ reversed-phase liquid chromatography (RPLC) to separate analytes prior to MS detection. Highly polar metabolites, such as amino acids (AAs), are poorly retained by RPLC, ma
Autor:
Emily L Gill, Robin H J Kemperman
Publikováno v:
Clinical Chemistry. 68:374-375
Autor:
Christopher D. Chouinard, Richard A. Yost, Jiajun Lei, Nicholas R Oranzi, Robin H. J. Kemperman, Timothy J. Garrett, Brett Holmquist
Publikováno v:
Analytical Chemistry. 91:13555-13561
Ion mobility was integrated with liquid chromatography/high resolution mass spectrometry (LC/IM-HRMS) to quantify 25-hydroxyvitamin D (25OHD) in human serum. It has previously been shown that 25OHD adopts two gas-phase conformations which are resolve
Autor:
Nicholas R Oranzi, Richard A Yost, Allison J. Levy, Robin H. J. Kemperman, Michael S. Wei, Atiye Ahmadireskety
Publikováno v:
TrAC Trends in Analytical Chemistry. 116:274-281
In recent years, metabolomics and lipidomics approaches have become increasingly popular for use in the analysis of human heath, molecular mechanisms, and disease progression. Despite the growth in applications and advances in instrumentation, metabo
Publikováno v:
Journal of the American Society for Mass Spectrometry. 30:731-742
Opioid addiction is an escalating problem that is compounded by the introduction of synthetic opiate analogues such as fentanyl. Screening methods for these compound classes are challenged by the availability of synthetically manufactured analogues,
Autor:
Nicholas R Oranzi, Michael S. Wei, Scott W Granato, Benjamin Rochon, Kevin Jeanne Dit Fouque, Francisco Fernandez-Lima, Julia L. Kaszycki, Aurelio La Rotta, Robin H. J. Kemperman, Richard A Yost, Violeta I. Petkovska
Publikováno v:
Analytical chemistry. 91(6)
Quantitation of the serum concentration of 25-hydroxyvitamin D is a high-demand assay that suffers from long chromatography time to separate 25-hydroxyvitamin D from its inactive epimer; however, ion mobility spectrometry can distinguish the epimer p
Autor:
Robin H. J. Kemperman, Christopher D. Chouinard, Harrison M. King, Christopher R. Beekman, Richard A. Yost
Publikováno v:
International Journal for Ion Mobility Spectrometry. 20:31-39
Drift tube ion mobility spectrometry (DTIMS) coupled with mass spectrometry was evaluated for its capabilities in rapid separation of endogenous isomeric steroids. These compounds, which included eight isomer groups, were investigated as protonated a
Autor:
Richard A. Yost, Michael S. Wei, Christopher D. Chouinard, Christopher R. Beekman, Robin H. J. Kemperman
Publikováno v:
Clinical Chemistry. 62:124-133
BACKGROUND Ion mobility spectrometry (IMS) is a rapid separation tool that can be coupled with several sampling/ionization methods, other separation techniques (e.g., chromatography), and various detectors (e.g., mass spectrometry). This technique ha