Gas Chromatography (GC)

A recent study reveals that pesticide residues in herbs have a low transfer rate to herbal infusions, ensuring safer consumption of these products. The validated analytical method used in the study provides valuable insights into the levels of pesticide residues in herbs and their limited presence in the resulting infusions.

Webinar Date/Time: Tuesday, July 11, 2023 at 11am EDT | 8am PDT | 10am CEST

A temperature-controlled cryogenic distillation and gas chromatography, atom trap measurement system is used for precise analysis of atmospheric 85Kr abundance. This advanced technology enables online monitoring with high sensitivity and reduced sample size requirements.

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.

How physical and chemical characteristics are related to dirt in the GC system.

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

In this LCGC Blog, Tony Taylor performs various experiments with ChatGPT to test how useful the AI technology can be in aiding chromatographers' work.

Metal organic frameworks (MOFs) and ionic liquids (ILs) combine to form a powerful gas chromatography stationary phase, enabling improved separation properties and expanded application possibilities. This innovative system offers enhanced separation capabilities and paves the way for advancements in gas chromatography analysis.

Extraction of gasoline and its major aromatic groups was promising using a carbon nanotube-assisted solid-phase microextraction (CNT-SPME) fiber.

The retention parameters defined in gas chromatography (GC) analysis using multiple temperature programs were comparable to those determined using isothermal GC measurements.

A new method determines gas-polydimethylsiloxane (PDMS) distribution constants of key Cannabis terpenes and terpenoids, providing insights into their behavior and for optimizing SPME methods for analysis of these compounds.

Innovative gas chromatography (GC) study combines computer vision and chromatographic fingerprinting to uncover diagnostic signatures in food volatilome.

We interviewed an AI program (ChatGPT) for LCGC North America asking questions about AI and its role in various applications for separation science to include data analysis, and high performance liquid chromatography (HPLC), hydrophilic-interaction chromatography (HILIC), reversed-phase liquid chromatography (RPLC), liquid chromatography–mass spectrometry (LC–MS), gas chromatography–mass spectrometry (GC–MS), high resolution mass spectrometry (HRIM–MS), high resolution tandem mass spectrometry (HRMS/MS), and related topics.

A new methodology for trapping polycyclic aromatic hydrocarbons from vehicular emissions using an in-tube extraction device (IT-FEx) and analyzing them through gas chromatography-barrier ionization discharge detection (GC-BID) has been developed and tested successfully, according to a study published in the Journal of Chromatography A.

Manufacturing capillary gas chromatography (GC) columns is a very complex procedure, with many production factors to consider. In this LCGC Blog, Tony Taylor lists some of the vital components of the GC column-making process.

This month we interview Juan L. Benedé from the University of Valencia in Spain, about his work developing microextraction approaches, based on the use of sorbent materials, for application to complex matrices, and his focus on the determination of disease biomarkers in biofluids.

How to enhance the sensitivity, specificity, and speed of metabolite measurement using TIMS, which in turn helps to accelerate the pace of metabolomics research.

The workshop will take place 28–29 June 2023 in Liège, Belgium.

Researchers compared two widely used equations to identify pitfalls in normalizing specific retention volume for inverse gas chromatography (IGC) analysis.

A solid-phase microextraction (SPME) Arrow combined with comprehensive two-dimensional gas chromatography coupled to mass spectrometry (GC×GC–MS) identified about 40 more volatile compounds in a variety of whiskeys compared to conventional SPME.

The reliability of column chromatography for GC–MS analysis of hopanes was tested in oil samples of three different types, using neutral alumina as a solid-phase adsorbent and a Pasteur pipette as a separation device.

Researchers have used comprehensive two-dimensional gas chromatography with time of flight mass spectrometry and Fisher-ratio analysis to evaluate the breakdown of organic-based getters used to absorb gases and vapors from their surroundings.

The level of uncertainty provided by most forensic laboratories for reported blood alcohol results has been woefully underassessed. Not only is this bad science, but someone’s civil liberties may be at stake.

High performance liquid chromatography–mass spectrometry and gas chromatography–mass spectrometry, along with numerous extraction methods, are helping to find organosulfur compounds in food more easily, providing researchers better information about the health benefits of these substances.

Exploring the impact of green chemistry on analytical chemistry and GC is the focus of this instalment of "GC Connections".

Limitations often arise when using GC with quadrupole-based mass spectrometers for detecting volatile and semivolatile contaminants. Enter HRAMS-MS.

Direct-injection mass spectrometry (DIMS) and gas chromatography (GC) approaches have some significant differences that are pertinent when analyzing volatile organic compounds (VOCs). We explain.

Everyone is talking about sustainability, and organizations are creating sustainability programs. But what does green chemistry really mean, and how does it apply to gas chromatography?

By following some simple guidelines, you can ensure your GC columns live a long and healthy life.

Pesticides in local surface and groundwaters were purified and enriched with solid-phase extraction, then analyzed using multidimensional gas chromatography coupled to mass spectrometry, with the results compared to those found by gas chromatography–quadrupole mass spectrometry.