Gas Cylinder Safety, Part 1: Hazards and Precautions
October 31st 2016Many gas chromatographers are not fully aware of safe practices for handling high-pressure gas cylinders. Gas chromatography (GC) operators should be trained to properly transport, install, connect, and maintain their gas supplies, as well as to deal with emergencies. In the first of a two-part series, this month’s “GC Connections” examines the principal hazards and safety issues surrounding the compressed gas cylinder. Next month’s instalment will present safe procedures for routine cylinder use.
Phenomenex to be Acquired by Danaher Corporation
October 24th 2016Phenomenex has announced that it will be acquired by Danaher Corporation, a Fortune 150 science and technology company. Phenomenex will continue to operate as a standalone company, and will retain the Phenomenex brand, its personnel, and site locations.
Identifying and Discovering Marine Lipid Biomarkers Using LOBSTAHS
October 24th 2016Discovering and identifying molecular biomarkers in large liquid chromatography–mass spectrometry (LC–MS) data sets requires automation without loss of accuracy. Benjamin Van Mooy from the Wood Hole Oceanographic Institution reveals a lipidomics strategy using LOBSTAHS to identify lipid, oxidized lipid, and oxylipin biomarkers in high mass accuracy high performance (HP) LC–MS data.
Quantifying TBT Contamination in Whole Water Bodies
October 24th 2016Researchers have developed a method to quantify concentrations of the pollutant tributyltin (TBT) in whole water bodies using species-specific isotope dilution (SSID) and gas chromatography with inductively coupled plasma mass spectrometry (GC–ICP-MS).
Assessing Permeation of VOCs Through Polymeric Materials
October 24th 2016The migration of chemicals through polymeric materials is difficult or impossible to model theoretically, placing an emphasis on experimental assessment to provide reliable empirical data. This article describes an investigation into the permeation of volatile chemicals through thin polymer membranes based on dynamic headspace, and how the information generated may be of value industrially - specifically in the fields of food packaging and personal protective equipment.
Fast and Easy Cannabis Potency Testing Using an Entry Level LC System
October 19th 2016This application note shows the fast and simple analysis of nine cannabinoids of interest using an Agilent 1260 Infinity HPLC in an entry level setup. Results obtained from actual cannabis samples were cross validated on another system (LC–MS/MS) using UHPLC separation techniques.
The LCGC Blog: Allowable Changes to Pharmacopeial HPLC Methods
October 18th 2016I started my career working in a Quality Control laboratory. I'm familiar with the constraints that must be imposed to ensure consistent global standards and the pace at which change can be implemented without loss of control either within a business or across an industry. OK-scene set.
Characterizing Pigments in Peppers
October 17th 2016A group of researchers have characterized carotenoid and chlorophyll in different sweet bell peppers (Capsicum annuum L.) using offline multidimensional supercritical fluid chromatography (SFC) combined with reversed-phase liquid chromatography (LC) for the first time.