Determining the Serum Proteomic Profile in Migraine Patients with LC–MS
April 17th 2025Researchers used liquid chromatography–mass spectrometry (LC–MS) in their proteomic analysis to compare the serum proteome of migraine patients with healthy controls and to identify differentially expressed proteins as potential migraine biomarkers.
Determining the Link Between Prenatal Cannabis Use and Symptoms of Depression Using LC–MS/MS
April 16th 2025Researchers investigating the relationship between cannabis use during pregnancy and depressive symptoms—and whether continued use beyond the first trimester or higher levels of use were linked to increased symptoms—used liquid chromatography–tandem mass spectrometry (LC–MS/MS) to confirm the presence of 11-nor-9-carboxy-delta-9-tetrahydrocannabinol (THC-COOH) in urine samples.
Miniaturized GC–MS Method for BVOC Analysis of Spanish Trees
April 16th 2025University of Valladolid scientists used a miniaturized method for analyzing biogenic volatile organic compounds (BVOCs) emitted by tree species, using headspace solid-phase microextraction coupled with gas chromatography and quadrupole time-of-flight mass spectrometry (HS-SPME-GC–QTOF-MS) has been developed.
Identifying PFAS in Alligator Plasma with LC–IMS-HRMS
April 15th 2025A combination of liquid chromatography ion mobility spectrometry, and high-resolution mass spectrometry (LC–IMS-HRMS) for non-targeted analysis (NTA) was used to detect and identify per- and polyfluoroalkyl substances (PFAS) in alligator plasma.
A Matrix-Matched Semiquantification Method for PFAS in AFFF-Contaminated Soil
Published: April 14th 2025 | Updated: April 14th 2025Catharina Capitain and Melanie Schüßler from the Faculty of Geosciences at the University of Tübingen, Tübingen, Germany describe a novel approach using matrix-matched semiquantification to investigate per- and polyfluoroalkyl substances (PFAS) in contaminated soil.
Profiling Terpenoids in Cannabis with GC×GC-MS
April 14th 2025A joint study conducted by the University of Ferrara (Italy) and the Council for Agricultural Research and Economics (Rome, Italy) focused on the analysis of terpenes and terpenoids—key bioactive compounds responsible for the distinctive flavor and potential therapeutic effects of cannabis. For this study, the research team used comprehensive two-dimensional gas chromatography coupled with mass spectrometry (GC×GC-MS) coupled with dynamic headspace extraction (DHS) to profile these compounds in cannabis inflorescences. LCGC International spoke to Flavio A. Franchina of the University of Ferrara, corresponding author of the paper which resulted from this study, about their research.
The Current Challenges Mitigating PFAS
April 11th 2025In the final part of this interview, Ralph Mead and his group at the University of North Carolina, Wilmington, discuss the biggest challenges in mitigating the effects of PFAS right now. Here’s the final part of our conversation with the Mead Group at UNC Wilmington.
Analyzing Vitamin K1 Levels in Vegetables Eaten by Warfarin Patients Using HPLC UV–vis
April 9th 2025Research conducted by the Universitas Padjadjaran (Sumedang, Indonesia) focused on the measurement of vitamin K1 in various vegetables (specifically lettuce, cabbage, napa cabbage, and spinach) that were ingested by patients using warfarin. High performance liquid chromatography (HPLC) equipped with an ultraviolet detector set at 245 nm was used as the analytical technique.
The Effect of Time and Tide On PFAS Concentrations in Estuaries
April 8th 2025Oliver Jones and Navneet Singh from RMIT University, Melbourne, Australia discuss a recent study they conducted to investigate the relationship between tidal cycles and PFAS concentrations in estuarine systems, and offer practical advice on the sample preparation and LC–MS/MS techniques they used to achieve the best results.
Assessing Safety of Medications During Pregnancy and Breastfeeding with LC–MS/MS
Published: April 8th 2025 | Updated: April 8th 2025Researchers conducted a study on medications used in psychiatry and neurology during the perinatal period, assessing how antiepileptic drugs (AEDs) affect placental functions, including transport mechanisms, nutrient transport, and trophoblast differentiation. Several quantitative methods, such as those for antianxiety and hypnotic drugs, were established to evaluate the safety of pharmacotherapy during breastfeeding using liquid chromatography-tandem mass spectrometry (LC–MS/MS).
Maximizing Cannabinoid Separation for Potency Testing with LC
April 7th 2025Researchers from the Department of Chemistry at Western Illinois University (Macomb, Illinois) conducted a study to optimize the separation of 18 cannabinoids for potency testing of hemp-based products, using liquid chromatography with a diode array detector (LC–DAD). As part of our monthlong series of articles pertaining to National Cannabis Awareness Month, LCGC International spoke to Liguo Song, the corresponding author of the paper stemming from this research, to discuss the study and its findings.
What Goes in a CDS IT Service Level Agreement?
Published: April 7th 2025 | Updated: April 7th 2025Protecting your network chromatography data system (CDS) data is critical and a service level agreement (SLA) with your IT provider is vital. What should be included? Are SLAs for in-house IT and SaaS (software as a service) similar?
Fundamentals of Benchtop GC–MS Data Analysis and Terminology
April 5th 2025In this installment, we will review the fundamental terminology and data analysis principles in benchtop GC–MS. We will compare the three modes of analysis—full scan, extracted ion chromatograms, and selected ion monitoring—and see how each is used for quantitative and quantitative analysis.