December 3rd 2024
Shanghai University of Sport scientists recently developed a doping control method based on gas chromatography combustion isotope ratio mass spectrometry (GC/C/IRMS).
Inside the Laboratory: The Yang Group of the University of Oklahoma
January 16th 2024In our second edition of “Inside the Laboratory,” Zhibo Yang, PhD, an associate professor of chemistry at the University of Oklahoma, discusses his group’s most recent work in single-cell mass spectrometry (MS) and MS tissue imaging.
Synthesizing Synthetic Oligonucleotides: An Interview with the CEO of Oligo Factory
January 15th 2024LCGC and Spectroscopy Editor Patrick Lavery spoke with Oligo Factory CEO Chris Boggess about the company’s recently attained compliance with Good Manufacturing Practice (GMP) International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH) Expert Working Group (Q7) guidance and its distinction from Research Use Only (RUO) and International Organization for Standardization (ISO) 13485 designations.
This review article discusses scientific rationales and current best practices in the pharmaceutical industry for performing chromatographic peak purity assessments (PPA). These activities are associated with the development and validation of liquid chromatographic (LC) stability-indicating analytical methods applicable to regulatory submissions of small-molecule drug candidates. The discussion includes a comprehensive overview of the PPA-related regulatory and scientific landscape and common industry approaches to obtain PPA results, as well as the strengths and weaknesses of PDA-facilitated ultraviolet (UV) PPA and other PPA techniques.
Flow-Injection MS Selectively Ionizes Oxidized Triacylglycerols Versus Non-Oxidized Precursors
December 15th 2023While lipid oxidation in food is a serious problem, lipid species in both oxidized and non-oxidized forms at varying concentrations make detection and identification of the less abundant species difficult.
UHPLC–MS Method Used to Detect Purine Metabolites and Study Severe Biological Disorders
December 5th 2023A recent study published in the Journal of Separation Science reveals how ultrahigh-performance liquid chromatography tandem mass spectrometry (UHPLC–MS/MS) could be used to detect and quantify purine metabolites.