Author
Latest:
In Memory of Walton Caldwell, a Pioneer in SFCToday, I learned of the passing of a dear friend and a valued collaborator, Walton Caldwell, who founded the company Princeton Chromatography in 1994.
Latest:
Efficient PFAS Sample Prep, following EPA 1633Webinar Date/Time: Wed, May 29, 2024 11:00 AM EDT
Latest:
Control of Antibiotics by Micellar Liquid Chromatography in Food SamplesVeterinary drugs have become an integral part of livestock production and play an important role in animal welfare maintenance, mainly for preventing disease, curing infection, controlling the risk of disease transmission to humans and for increasing the productive capacity of animals.
Latest:
The Potential of Polymer Monolithic Capillary Columns for the LC–MS Analysis of Intact ProteinsDescribes the preparation of a reversed-phase monolithic column with an optimized porous structure to separate intact proteins using LC–MS.
Latest:
Cost-Effective Analysis of Major, Minor, and Trace Elements in Foodstuffs Using the 4100 MP-AESWhether the goal is food safety, ensuring quality or establishing provenance, measuring the trace element content of foods and beverages that we all consume is of paramount importance.
Latest:
Astaxanthin from Shrimp By-products for Active Packaging SystemsThe two year international project "Preparation of active packaging with antioxidant and antimicrobial activity based on astaxanthin and chitosan",1 which started in 2009, was funded by FONCYCIT (Fund for International Cooperation of Science and Technology between the European Union and Mexico).
Latest:
Toward Quantitative Imaging Mass SpectrometryThe main limitations of quantification using MALDI imaging are discussed and the different approaches used for quantitative measurement in MSI are evaluated.
Latest:
Identification of Novel Psychoactive Substances Using Hyphenated Mass Spectrometric TechniquesGas chromatography–mass spectrometry (GC–MS) and liquid chromatography–mass spectrometry (LC–MS) techniques offer advantages in separating and confirming the identity of constituents in novel psychoactive substances.
Latest:
Synthesis and Applications of BEH Particles in Liquid ChromatographyHow ethylene-bridged hybrid inorganic–organic (BEH) particles are prepared and how their special qualities can be used to improve separations
Latest:
Using MS Data for Peak Tracking in Computer Supported HPLC Method DevelopmentA systematic way to develop HPLC methods consists of building up and running a useful set of experiments (DOE, design of experiments) to evaluate the influence of several factors or method conditions on the selectivity of a chromatogram. The crucial part here is the peak tracking between the chromatograms.
Latest:
Toward Quantitative Imaging Mass SpectrometryThe main limitations of quantification using MALDI imaging are discussed and the different approaches used for quantitative measurement in MSI are evaluated.
Latest:
Retention Loss of Reversed-Phase Columns Using Highly Aqueous Mobile Phases: Fundamentals, Mechanism, and Practical SolutionsWe investigate a phenomenon observed by many practitioners of reversed- phase LC: a dramatic loss in retention volume or time after the column flow is stopped and resumed when using highly aqueous mobile phases with certain columns.
Latest:
Monitoring Water Framework Directive Priority Substances in WastewaterThe level of pollutants present in water bodies is most commonly judged against set environmental quality standards (EQSs) that vary among different countries.
Latest:
Lean, Green Food-Testing Machines: How Innovations in Microflow LC-MS Can Improve Food Safety Test MethodsThis article describes how a food testing laboratory can transition routine high performance liquid chromatography (HPLC) methods to microflow LC for improved sensitivity, throughput, and robustness of analysis.
Latest:
Screening of Pollutants in Water Samples and Extracts from Passive Samples and Extracts from Passive Samplers Using LC–MS and GC–MSThis article describes the GC–MS and LC–MS screening methods developed for the analysis of both low-volume water samples and extracts obtained from various designs of passive samplers.
Latest:
Identification of Novel Psychoactive Substances Using Hyphenated Mass Spectrometric TechniquesGas chromatography–mass spectrometry (GC–MS) and liquid chromatography–mass spectrometry (LC–MS) techniques offer advantages in separating and confirming the identity of constituents in novel psychoactive substances.
Latest:
Quantitative Analysis of Drugs of Abuse in Urine Using UHPLC Coupled to A TOF Mass SpectrometerHuman beings have long consumed mind altering drugs to attain a euphoric high. These illegal drugs are obtained directly from natural substances including plants or they are chemically synthesized. Monitoring consumption of abused drugs is important in workplace settings, crime scene investigations, forensic toxicology and other related areas.
Latest:
A Novel Approach to Measure Crop Plant Protein ExpressionCrop development to improve yield or disease resistance has been explored for centuries and the technologies to measure these improvements have subsequently become complex.
Latest:
Electromembrane Extraction with Vials of Conducting PolymerIn electromembrane extraction (EME), the target analyte is extracted from an aqueous sample across a supported liquid membrane (SLM) and analyzed using LC. Through the study presented here, we demonstrate the principles of the technique and test its performance.
Latest:
Use of Synthetic Peptides to Determine Relative Retention Times for Automated Targeted Protein/Peptide Quantification Method DevelopmentProtein/peptide discovery data obtained from data-dependent experiments have been used to increase the success rate of targeted quantification assays as well as automate method building.
Latest:
Field-Flow Fractionation Coupled with ICP-MS for the Analysis of Engineered Nanoparticles in Environmental SamplesThis article provides an overview of the capabilities of field-flow fractionation coupled with inductively coupled plasma–mass spectrometry and demonstrates that the technique shows a great deal of promise to separate, detect and quantitate nanoparticles in environmental matrices.
Latest:
Reliable Measurement of Silanol Suppression Potency in Alkyl-bonded Stationary PhasesThe design of strategies to reduce the activity of residual silanols in conventional alkyl-bonded columns is still one of the main challenges in the current separation of basic compounds by reversed-phase liquid chromatography.
Latest:
Mass Spectrometry in Analytical LipidomicsAn overview on the present state of analytical lipidomics is presented from the perspective of mass spectrometry (MS) and the MS strategies most frequently used in lipidomics are highlighted.
Latest:
Separation Science in The Sunshine StateA look at what’s in store for chromatographers at Pittcon 2018, which takes place in Orlando, Florida, USA, from 26 February to 1 March 2018.
Latest:
Using Multiple Analytical Techniques in Non-Targeted Analysis of Food ProductsTraditional approaches for measuring food components are based on a ?target list? approach, whereby specific methodologies are developed for individual or related compounds. Such methods are well-suited for routine monitoring but can fail to detect emerging contamination events or to identify new prospects for product development.
Latest:
Synthesis and Applications of BEH Particles in Liquid ChromatographyHow ethylene-bridged hybrid inorganic–organic (BEH) particles are prepared and how their special qualities can be used to improve separations
Latest:
A Novel Approach to Measure Crop Plant Protein ExpressionCrop development to improve yield or disease resistance has been explored for centuries and the technologies to measure these improvements have subsequently become complex.
Latest:
Next-Generation Stationary Phases: Properties and Performance of Core–Shell ColumnsThis short review focuses on the physicochemical properties of core–shell particles and their resulting chromatographic efficiencies as they relate to the comparison of their mass transfer kinetics to those of columns packed with sub-2-?m fully porous particles.
Latest:
Book Review: Introduction to Modern Liquid Chromatography, 3rd Edition by L.R. Snyder, J.J. Kirkland and J.W. DolanBook Review: Introduction to Modern Liquid Chromatography, 3rd Edition.
