HPLC and LC–MS Estimation of Goserelin Acetate Sustained-Release Implant Impurity
October 21st 2023Researchers have developed a meticulous method for analyzing impurities in a product used for early treatment of breast cancer in premenopausal and perimenopausal women, shedding light on the product’s degradation pathways.
MLP–HPLC–UV Method Simultaneously Determines Three Triterpenic Acids in Jujube Fruit
October 19th 2023Researchers have developed a method for the simultaneous determination of betulinic acid, oleanolic acid, and ursolic acid in jujube extract, utilizing high performance liquid chromatography with ultraviolet detection (HPLC–UV) coupled with multilayer perceptron networks, offering a more efficient alternative to classical HPLC techniques.
Imaging Mass Spectrometry with Gas-Phase Charge Inversion Ion/Ion Reaction Separates Isobaric Lipids
October 16th 2023Researchers from the University of Florida have employed gas-phase charge inversion ion/ion reactions to distinguish isobaric lipids in imaging mass spectrometry, offering enhanced molecular specificity for analyte identification.
Two IMS-MS Modalities Assist Nonenzymatic Posttranslational Modification Studies Without Mass Loss
October 13th 2023Researchers at two US colleges have utilized ion mobility spectrometry–mass spectrometry (IMS-MS) to analyze nonenzymatic posttranslational modifications and peptide cleavages in a single peptide system, revealing insights into critical biomarkers for age-related diseases.
AIU–IM–MS Unlocks Precision in Assessing Therapeutic Antibody Stability
October 12th 2023Researchers in Tianjin, China, have employed all ion unfolding–ion mobility–mass spectrometry (AIU–IM–MS) to enhance the differentiation of therapeutic polyclonal antibodies, offering insights into improvements in conformational stability and advantages in cost-effectiveness.
Enhancing Spice Safety: Automated Cleanup Workflow for Pesticide Residue Analysis
October 11th 2023A study conducted at the University of Almeria, Spain, has developed an automated micro-solid-phase extraction (µSPE) clean-up method for pesticide residue analysis in various spice samples, including paprika, curry, turmeric, dry chili, and black pepper, using LC–MS/MS.
Advances in Liquid Chromatography for Mustard Agent Exposure Biomonitoring Revealed
October 10th 2023Valérie Pichon's review in Analytical and Bioanalytical Chemistry delves into sophisticated liquid chromatography techniques for detecting albumin adducts, vital biomarkers in retrospective mustard agent exposure monitoring, offering a broader window of detection than urine-based methods.
Electron Activated Dissociation for Protein Post-Translational Modifications
October 10th 2023A research team assessed the performance of electron activated dissociation (EAD) in comparison to collision-induced dissociation (CID) using a fast-scanning quadrupole time-of-flight (QTOF) mass spectrometer.
New 2D LC–MS Analytical Method Unveils the Secrets of Ancient Chinese Herbal Formula HGWD
October 10th 2023A comprehensive analytical approach utilizing online two-dimensional liquid chromatography coupled with hybrid linear ion trap orbital trap mass spectrometry, has enabled the in-depth analysis of Huangqi Guizhi Wuwu decoction, identifying 170 chemical constituents and offering insights into its complex chemical composition and potential therapeutic properties.
New HPLC-UV Method Detects Amino Acids in Foods with High Precision
October 9th 2023Researchers have developed a highly sensitive and cost-effective HPLC-UV method for simultaneously detecting 36 D/L-amino acids in foods, opening new avenues for food quality control and shedding light on the significance of D-amino acids in nature.
Study Reveals Organic Soil Variability in Sorbing PFAS Contaminants
October 6th 2023A study from researchers in the journal Chemosphere reveals how the sorption behavior of PFAS contaminants varies across different organic soil types, emphasizing the importance of organic matter quality, chain length, and pH in understanding their environmental impact.
UHPLC-MS Method Used to Detect Purine Metabolites and Study Severe Biological Disorders
October 4th 2023A new ultrahigh-performance liquid chromatography tandem mass spectrometry (UHPLC–MS/MS) was used to detect purine metabolites in rat plasma, revealing more information about their role in several biological disorders.
Why is Open-Access Hyphenation Important for Chromatographers?
October 4th 2023At HPLC 2023, John Langley, a professor at the University of Southampton in Southampton, UK, presented a talk called "(R)evolution of Hyphenations, Through Open-Access RP-HPLC–MS, Open-Access UHPSFC–MS and 2D-LC–IMS-MS in Academia". He spoke with LCGC on the importance of open-access hyphenation, and how to implement it in your research.
Multitargeted Internal Calibration Using LC–MS Quantifies Chronic Kidney Disease-Linked Metabolites
September 30th 2023Researchers have developed a multitargeted internal calibration method for precise quantification of chronic kidney disease (CKD)-related endogenous metabolites using liquid chromatography–mass spectrometry (LC–MS).
Newly Devised Peptide Chiral Stationary Phases Evaluated for Enantioselectivity in HPLC Applications
September 14th 2023Researchers from Hebei University in China have developed and characterized three novel peptide chiral stationary phases (CSPs) for enantiomeric separation, demonstrating their potential in high performance liquid chromatography (HPLC).