Mass Spectrometry

Fresh garlic and aged garlic, both brown and black, were all analyzed for their bioactives, in an attempt to expand those compounds’ applications as food ingredients and dietary supplements.

A new study reveals that real-time library searching significantly improves the structural characterization of glycerophospholipids and sphingomyelins, offering enhanced selectivity and comprehensive analysis. By utilizing real-time identifications to trigger targeted MSn analyses, researchers gain deeper insights into these crucial lipid species.

Researchers have discovered diacylglycerols as potent biomarkers for the rapid diagnosis of breast cancer, using mass spectrometry imaging. This breakthrough study offers new possibilities for improved intraoperative assessment and personalized treatment strategies.

Scientists have developed a breakthrough MDLC–MS method for in-depth characterization of charge variants in therapeutic antibodies. The innovative approach enables the detection and evaluation of rare charge variants, facilitating improved safety and efficacy in antibody development.

Organic acids, flavonoids, iridoids, and saponins were among the compounds discovered, with significant α-glucosidase inhibitory behavior in vitro that was inconsistent with substance content level.

New research emphasize the importance of identifying metabolite interference in LC–MS targeted metabolomics analysis to ensure accurate results. The study highlights the need for thorough investigation and resolution of metabolite interferences for reliable metabolite measurement in targeted metabolomics.

Mixed-mode cationic exchange (MCX) sorptive tapes combined with direct infusion mass spectrometry enable selective extraction and rapid analysis of cationic compounds in complex samples, such as opioids in saliva.

Internal energy distributions of five classes of ion sources based on dielectric barrier discharge (DBD) were measured, with results suggesting that one particular type of DBD can minimize fragmentation of ions with labile bonds.

A research team has developed a fast and sensitive method using UHPLC–MS/MS to simultaneously detect the nematicide fluensulfone (FSF) and its two major metabolites in different agricultural soils, providing valuable insights into the environmental behavior of FSF in soil systems.

A simultaneous, single-run analysis was sought for metabolites of the central carbon metabolism pathway, which is closely related to the occurrence and development of most diseases in humans.

New method enables comprehensive analysis of secondary formation markers in ambient organic aerosols, providing valuable insights into atmospheric pollutants using HPLC–ESI-TOF-MS.

The development of a newly-designed Girard's reagent, HBP, as charged isobaric mass tags has enabled selective capture and sensitive detection of aldehyde metabolites. The LC–dNLS-MS/MS screening approach using this reagent has successfully facilitated the discovery of natural aldehydes and their profiling in complex samples.

Researchers have developed an innovative strategy for compound annotation in offline 2D-LC–MS analysis. The approach combines hand-in-hand alignment with targeted molecular networking (TMN) and was successfully applied to analyze the chemical profile of Yupingfeng (YPF), a traditional Chinese medicine prescription, resulting in the identification of 497 compounds and demonstrating its efficiency and scalability in complex sample analysis.

Nails were evaluated for their suitability as non-invasive biomarkers for exposure to antibiotics, even those that are commonly prescribed.

A newly developed UHPLC–MS/MS method allows for the accurate analysis of bioactive compounds, including apigenin, apigenin 7-glucoside, and chlorogenic acid, in goat serum.

In a talk at ASMS 2023, Stephanie Rankin-Turner of the Johns Hopkins Bloomberg School of Public Health detailed how thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS) analyzed the body odor of humans to quantify mosquitos' attraction to them.

At ASMS 2023, Sarah Rogstad of the US Food and Drug Administration reviewed and updated a retrospective analysis originally published in 2016.

Agilent and Metrohm join forces, and Waters Corporation completes acquisition of Wyatt Technology.

Applying headspace-SIFT-MS to untargeted screening of food products and ingredients.

At ASMS 2023, Tabitha Hambidge of LGC presented a novel method for automating the certification of reference materials with the help of double exact matching isotope dilution mass spectrometry (DEM-IDMS).

A new method for monitoring tricyclic antidepressants (TCA) in biological fluids and tissues in real time was proposed for the purposes of improving their effects or determining causes of death.

In a talk at ASMS 2023, Rebecca L. Beres of the University of North Carolina at Chapel Hill focused on two types of analysis methods: liquid chromatography coupled to tandem mass spectrometry (LC–MS/MS) and a liquid chromatography, ion mobility spectrometry, and mass spectrometry (LC–IMS-MS) platform.

An oral session recognizing the John B. Fenn Distinguished Contribution in Mass Spectrometry Award winner and the Al Yergey MS Scientist Award winners took place on Monday, June 5th, from 4:45–5:30 pm.

Speaking at ASMS 2023, Sara Schlange of the University of Nebraska-Lincoln discussed a mass spectrometry (MS)-based alternative for matrices problematic in current immunoassays regarding the detection of peanut allergens.

At ASMS 2023, LCGC spoke with Erin Baker of the University of North Carolina at Chapel Hill. This segment previews one of several ASMS interviews that were conducted at the conference.