New Procedures Enhance Quality Control for Large-Scale Plasma Proteomics Analyses
May 24th 2023A recent study has introduced comprehensive quality control procedures for large-scale plasma proteomics analyses. The research provides valuable insights into optimizing performance, enhancing reproducibility, and ensuring quantitative accuracy in proteomics investigations.
New Technique Reveals Hidden Structures of Lipid A with Multiple Glycosylation Sites
May 24th 2023A new tandem mass spectrometry technique has been developed for the rapid determination of complex lipid A structures, including novel variations from arctic bacterioplankton. This study enhances our understanding of bacterial adaptations and paves the way for the development of targeted therapies and antimicrobial agents.
New Analytical Method Enables Multi-Class Analysis of Pesticides in Corn Products
May 23rd 2023A new study introduces a comprehensive two-dimensional liquid chromatography coupled with tandem mass spectrometry (2D-LC–MS/MS) method for the analysis of 112 pesticides in corn-based products. The method exhibits high precision, lower limit of quantification values, and successful detection of trace levels of pesticides in real samples, offering promise for the analysis of complex matrices.
Ink Source Prediction and Assessment Made Possible by Mass Spectrometry
May 22nd 2023Scientists have developed a new method for predicting and assessing the source of black inks using direct analysis in real-time mass spectrometry. By applying dimensionality reduction techniques and likelihood ratio analysis, the researchers achieved high accuracy in identifying ink sources, demonstrating the potential of this approach in forensic ink analysis.
Advances in Peak Width Analysis for Liquid Chromatography Techniques
May 18th 2023A researcher has derived an expression for peak width in liquid chromatography with exponential retention and linear program preceded by an isocratic hold, providing valuable insights for enhancing chromatographic separations.
New Device Developed to Detect Pollutants in Vehicle Emissions
May 15th 2023A 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.
New Tool for Authenticating Single Herbal Powders
May 15th 2023Scientists have developed an automatic and highly efficient method to authenticate single herbal powders using microscopy-guided in situ auto-sampling combined with matrix-assisted laser desorption–ionization mass spectrometry (MALDI–MS).
New Framework Expands Isomer Identification Possibilities with Mass Spectrometry
May 15th 2023New statistical framework developed by researchers at the University of California in Riverside allows confident identification of isomeric molecules by mass spectrometry, even when no unique mass-to-charge peaks are generated between the isomeric pairs.
New Ultrasensitive LC–MS/MS Method Allows for Accurate Melatonin Quantification in Human Saliva
May 8th 2023A new study reports the development a highly sensitive LC–MS/MS method to measure salivary melatonin levels. The method has a lower limit of the measuring interval of 0.8 pg/mL, making it the most sensitive method for quantifying melatonin in saliva.
Study Finds That Using Seven Points Across a Peak Is Sufficient for Accurate LC–MS/MS Quantitation
May 8th 2023A recent study has found that using only seven points across an LC–MS/MS peak can provide sufficient accuracy and precision for drug quantitation studies in drug discovery and development, challenging the "rule-of-thumb" of using at least 15 points.
New Study Identifies Potential for Anticancer Drugs in Solanum Nigrum Fruits
May 5th 2023A recent study analyzed the composition and metabolism of steroidal alkaloids in Solanum nigrum fruits of different maturities and identified steroidal glycoalkaloids and steroidal alkaloids, providing a foundation for further research on biosynthesis and discovery of new steroidal alkaloid anticancer drugs.
Proteotypic Peptides of Hairs Can Be Used for Species Identification Using Mass Spectrometry
May 5th 2023A new published study introduces a simple and fast way to differentiate between animal species based on their hair. The in-sample digestion method coupled with mass spectrometry analysis was successfully tested on multiple species.
Computational Framework Developed to Evaluate Monoclonal Antibody Capture Chromatography Platforms
May 3rd 2023Researchers at Clemson University have developed a computational framework that integrates commercial software components to perform customizable technoeconomic feasibility analyses of monoclonal antibody capture chromatography platforms.