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A validated chromatographic method was developed for monitoring organochlorine pesticide residues in sesame seeds using QuEChERS sample preparation coupled with gas chromatography–tandem mass spectrometry (GC–MS/MS). The results demonstrate that QuEChERS combined with GC–MS/MS in multiple reaction monitoring (MRM) mode provides a robust, efficient, and reliable chromatographic solution for routine food safety monitoring and regulatory compliance in sesame seed analysis.

A comprehensive analytical strategy combining inductively coupled plasma mass spectrometry (ICP-MS) with untargeted liquid chromatography–tandem mass spectrometry (LC–MS/MS) was applied to evaluate the chemical composition of commercially available tattoo inks in Australia. The results demonstrate the critical role of LC–MS/MS-based chromatography in uncovering previously uncharacterized toxicants in tattoo inks and underscore the need for harmonized regulatory frameworks and routine chromatographic surveillance to ensure consumer safety.

Rapid native hydrophobic interaction chromatography–mass spectrometry methods have been developed using ammonium tartrate, enabling robust drug-to-antibody ratio and drug load distribution characterization, as well as real-time process analytical technology monitoring of antibody–drug conjugates bioconjugation without complex multidimensional workflows. LCGC International spoke to Bingchaun Wei of the research team about these methods.

Researchers used Design of Experiments approach to optimize gas chromatography with flame ionization detection (GC–FID) for essential oil analysis. The harmonized GC method enables robust, reproducible separation of 87 terpenes using a single column and sample preparation protocol, improving efficiency, standardization, and sustainability for essential oil quality control.

Luigi Mondello and leading lights from the organizing team spoke with LCGC International about the return of the 44th International Symposium on Capillary Chromatography (ISCC) and the 21st GC×GC Symposium, to be held May 17–22, 2026, at the Conference Centre in Riva del Garda, Italy, and why this is an essential event for the global separation science community.

Researchers evaluated the antibacterial activity of shiitake mushroom extracts prepared with different solvents and characterized their bioactive constituents using gas chromatography–mass spectrometry (GC–MS). Ethyl acetate extracts showed the strongest antibacterial effects against multiple pathogens, while chromatographic analysis identified ergosterol and linoleic acid as key antimicrobial contributors.

In a valproic acid–induced autism rat model, voluntary exercise improved social and cognitive behaviors by reshaping gut microbiota and metabolic signaling. Gas chromatography (GC) and liquid chromatography-mass spectrometry (LC–MS)–based chromatographic analyses revealed exercise-driven changes in short-chain fatty acids and neurotransmitters, with fecal microbiota transplantation reproducing these behavioral and metabolic benefits.

Green plant growing in a beaker with a green liquid with blurred green background and a chemnical structure overlay. Generated by AI. Credit: - © Fitryani - stock.adobe

Event Preview: 2nd Green Analytical Chemistry Workshop

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The second edition of the Green Analytical Chemistry Workshop promises to be an important event to promote sustainable analytical sciences. Initially launched in 2011 as the International SBSE Workshop, this biennial gathering has evolved significantly, broadening its scope and establishing itself as a key platform within the international scientific community.

Researchers from the Department of Chemistry at Michigan State University (East Lansing, Michigan) report that they have developed a label-free quantitative native proteomics workflow using native capillary zone electrophoresis–mass spectrometry (nCZE-MS) to profile endogenous protein assemblies, or complexoforms, in a complex biological sample. LCGC International spoke to the resulting paper’s authors, Fei Fang and Liangliang Sun, about this work.

Researchers investigated grape stem extracts as a sustainable source of bioactive phenolic compounds, combining ultraviolet–visible spectrophotometry and high-performance liquid chromatography (HPLC) with antioxidant activity assessment, demonstrating that the stems, typically discarded during winemaking, can be effectively used to design and optimize functional products with enhanced antioxidant capacity

The Chromatographic Society has announced the winners of the Martin Medal and the Silver Jubilee Medal for 2026. Professor Guowang Xu of the Dalian Institute of Chemical Physics in China, has been awarded the Martin Medal, and the Silver Jubilee Medal has been awarded to Professor Bo Zhang of Xiamen University in China.