Gas Chromatography (GC)

LCGC International spoke to Adrián de la Fuente and Silvia Valverde Bastardo from the University of Valladolid, Spain, about the development of a miniaturized headspace solid-phase microextraction gas chromatography–quadrupole time-of-flight mass spectrometry (HS-SPME-GC–QTOF-MS) method for the analysis of biogenic volatile organic compounds (BVOCs) emitted by native Spanish trees.

Flavonoids are widely used metabolites that carry out various functions in different industries, such as food and cosmetics. Detecting, separating, and quantifying them in fruit species can be a complicated process.

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Root exudates—substances secreted by living plant roots—are challenging to sample, as they are typically extracted using artificial devices and can vary widely in both quantity and composition across plant species.

A team of scientists from the Paris university developed and optimized MAVERIC, a miniaturized and autonomous gas chromatography (GC) system coupled to a nano-gravimetric detector (NGD) based on a NEMS (nano-electromechanical-system) resonator.

University of Valladolid scientists used a miniaturized method for analyzing biogenic volatile organic compounds (BVOCs) emitted by tree species, using headspace solid-phase microextraction coupled with gas chromatography and quadrupole time-of-flight mass spectrometry (HS-SPME-GC–QTOF-MS) has been developed.

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University of Maribor scientists reviewed the techniques used to determine e-liquid and aerosol composition in electronic cigarettes.

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In this edition of the LCGC Blog, Amber Hupp of the College of the Holy Cross reflects on her childhood and talks about her journey recreating the scents from that long past.

Microplastics and nanoplastics have been identified in the lungs of wild birds using laser direct infrared (LDIR) chemical imaging and pyrolysis gas chromatography–mass spectrometry (Py-GC–MS), in the first multi-species evidence of these plastics in bird lungs.

Iowa State University researchers evaluated imidazolium-based ZILs with sulfonate and triflimide anions to understand the influence of ZILs’ chemical structures on polar analyte separation.

Using pyrolysis-gas chromatography and mass spectrometry, scientists from Fudan University and the Putuo District Center for Disease Control and Prevention detected and quantified microplastics in newborn stool samples.

A new type of micro-gas chromatography column was fabricated using direct metal laser sintering (DMLS) to circumvent manufacturing issues faced by other micro-GC systems.

How is the indoor air affecting your health?

Here is some of the most popular content posted on LCGC International this week.

Here is some of the most popular content posted on LCGC International this week.

In the third part of Nicholas Snow's series on splitless GC injections, he discusses techniques for setting up the inlet and connections for optimized injections.

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A study has compared solid-phase extraction (SPE) to traditional normal-phase liquid column chromatography (LCC) methods for the analysis of hydrocarbons by gas chromatography–mass spectrometry (GC–MS).

The company announced multiple new product releases including a series of compact gas chromatography systems, three UV-Vis spectrophotometers, a new line of triple quadrupole mass spectrometers, and more.

In this month's edition of the LCGC Blog, Emanuela Gionfriddo discusses chromatography resources that can help make the field more accessible to newcomers and veterans alike.

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Guangdong University of Technology researchers used a gas chromatography-based method to detect nonylphenol isomers in sewage and wastewater sludge.

Here is some of the most popular content posted on LCGC International this week.

Thermal desorption and gas chromatography-tandem mass spectrometry were used to create a method for detecting airborne polycyclic aromatic hydrocarbon (PAH) samples.

A team of researchers has evaluated approaches in exposome research, highlighting sample preparation, MS-based platforms, and data acquisition strategies.

In Part II of our exploration of splitless injection, we will see that it is a surprisingly complex process, and that it is difficult to understand because we cannot see what is happening during the injection process. For this discussion, we will think of the injection process as beginning with the syringe plunger being depressed and ending with the start of a temperature program in the column oven. In most splitless injections, this process requires 30 s to 1 min. There are several band broadening and focusing mechanisms that affect the peak shapes, widths, and heights resulting from splitless injection.

You're invited to publicize your 2024–2025 new product introductions in LCGC. Here's how to get your products included.

LCGC International sat down with Christopher “Chris” Reddy of Woods Hole Oceanographic Institution, whose research was the basis for a recently released documentary.