May 15th 2024
Scientists from Vanderbilt University recently tested a new means of imaging mass spectrometry (IMS) for isotopically resolved intact proteins.
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.
LC×LC With UV Detection and 3D Contour Plot Differentiates Ginseng in Two Types of Chinese Medicine
July 13th 2023Authentication of popular ginseng-based products has been difficult and has caused confusion in quality control between traditional Chinese medicine (TCM) and Chinese patent medicine (CPM).
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.
Automatic z-Axis Correction Improves Mass Spectrometry Imaging of Uneven Surfaces
July 5th 2023A new method for automatic z-axis correction during mass spectrometry imaging of uneven surfaces has been developed, allowing for accurate molecular analysis of complex samples. This advancement enhances the reliability and reproducibility of mass spectrometry imaging, enabling researchers to visualize the spatial distribution of molecules in challenging samples with uneven topographies.
New Findings Shed Light on Formation and Analysis of Doubly Charged Lipid-Metal Ion Complexes
June 30th 2023Researchers have discovered that phospholipids form doubly charged lipid-metal ion complexes during electrospray ionization (ESI), providing valuable insights into the analysis of phospholipid structures.
New Method Enables Accurate Analysis of Aminoglycoside Antibiotic Residues in Aquatic Products
June 30th 2023Researchers have developed an ultrahigh-pressure liquid chromatography (UHPLC)—tandem mass spectrometry (MS/MS) method for the simultaneous determination of 10 aminoglycoside antibiotics in aquatic products.