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Propionic Acid Outperforms Formic and Acetic Acid in MS Sensitivity for High-Flow Reversed-Phase LC-MS Bottom-Up Proteomics
Propionic acid increases peptide identifications by 39% versus formic acid in LC-MS proteomics while maintaining chromatographic performance and compatibility.
News from LabRulezGCMS Library - Week 35, 2026
This week we bring you application notes by Shimadzu, Thermo Fisher Scientific and Waters Corporation and poster by MDCW / GC Image!
Hydrogen Analysis by Gas Chromatography–Mass Spectrometry
A cryogenic single-column GC-MS method with modified EI enables direct hydrogen quantification in complex gas mixtures using helium carrier gas.
Pyrolysis Compound-Specific Isotope Analysis of Proteins in Aged Paintings: Diketopiperazine δ13C Values as Collagen Source Indicators
A μg-scale DIP-GC-C-IRMS method uses diketopiperazine δ13C values to distinguish terrestrial and marine collagen sources in aged paintings.
Thermal Dry Reforming of Bio-Oil Model Compounds
This study investigates thermal dry reforming of bio-oil model compounds, revealing temperature-dependent hydrogen production and CO₂ conversion.
Oxidative Polymerization of Organic Compounds in the Presence of Iron-Bearing Minerals: Implications for Organic Preservation on Mars
This study shows that iron minerals promote oxidative polymerization of organic compounds under Mars-like conditions, improving preservation potential.
Experimental Design-Based Dispersive Liquid–Liquid Microextraction with GC-FID for Determination of Polycyclic Aromatic Hydrocarbons in Surface Water
This study develops an experimentally optimized DLLME-GC-FID method for efficient extraction and analysis of PAHs in surface waters.
Development and validation of an analytical pyrolysis method for determination of microplastic polymers in atmospheric aerosols
This study develops and validates a Py-GC-MS method for detecting and quantifying common microplastic polymers in atmospheric aerosols.
Untargeted Chemical Profiling of Two-Dimensional Gas Chromatography Coupled with High-Resolution Mass Spectrometry Data for Botrytized Wines via Topological Data Analysis
This study combines GC×GC-HRMS and topological data analysis to identify chemical markers and compositional differences in botrytized wines.
Characterization of the Major Odorants in Beer Brewed with Torulaspora delbrueckii─Differences to Beer Brewed with Saccharomyces cerevisiae
This study shows beers fermented with T. delbrueckii have stronger fruity aromas than S. cerevisiae, driven by higher ester odor activity.
