April 30th 2024
Scientists from the Chinese Academy of Inspection and Quarantine recently published a review on how green solvents can further the evolution of microextraction techniques.
Review of Packed Sorbent Solid-Phase Extraction and Microextraction Methods From Manual to Automated
August 15th 2023Studies published over the last five years have focused on fully or semi-automated approaches and their applications in extraction of both organic and inorganic pollutants, while modern robotic tools and 3D printing are starting to make impacts.
Polysorbate Analysis in Biopharmaceutical Applications—A Snapshot of the Analytical Toolbox
An overview of different approaches for the qualitative and quantitative analysis of polysorbates.
CIL-UHPLC–HRMS Profiles Carbonyl Compounds in Baijiu Daqu Samples
July 27th 2023Sauce-flavor or sauce-aroma baijiu, one variant of a popular Chinese liquor, is treated with a fermentation starter called daqu, giving the concoction a unique taste profile, and scientists want more information about how it can inform the manufacturing of higher-quality baijiu.
GC×GC–MS With Flame Ionization Aids AI Strategies for Raw Hazelnut Volatilome Evaluation
July 11th 2023Quality control of raw hazelnuts is already a highly specific process, but has limitations including operator influence, duration, and lack of standardization. AI is now assisting in quality decision-making using GC×GC analysis.
Human Body Odors Tested for Mosquito Attraction in Zambia
July 10th 2023Stephanie Rankin-Turner and colleagues at Johns Hopkins Bloomberg School of Public Health have recently performed research in Zambia indicating that mosquitoes are more attracted to humans who exhibit abundant levels of certain volatile carboxylic acids.
Two-Color Femtosecond Laser Ion Mass Spectrometry Used for Analysis of Carcinogenic Compounds
July 6th 2023Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) are suspected to be carcinogenic, and improvements are sought to improve gas chromatography–mass spectrometry (GC–MS) methods traditionally used for this analysis.
Study Reveals Low Transfer of Pesticide Residues from Herbs to Infusions
June 30th 2023A 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.
Exploring Mosquito Olfactory Preferences with Whole Body Volatilomics
June 7th 2023In 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.
An Interview with AI About Its Potential Role in Separation Science
May 17th 2023We 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.
Rising Stars of Separation Science: Juan L. Benedé
May 9th 2023This 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.
SPME Arrow Improves Upon Conventional SPME in GC×GC–MS Analysis of Whiskey Flavor Compounds
May 5th 2023A 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.
GC✕GC–TOF-MS Used with F-ratio Analysis to Evaluate Volatiles in Getter Substrate Breakdown
May 2nd 2023Researchers 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.
Using HPLC–MS and GC–MS for Improving Speed and Accuracy of Organosulfur Compound Detection
May 2nd 2023High 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.