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This article highlights the analytical advantages of analyzing raw milk for aflatoxins, focusing on M1, using high performance liquid chromatography (HPLC) with fluorescence detection - without derivatization. Leveraging M1’s native fluorescence, this is particularly welcome since this approach affords the requisite analytical sensitivity with minimal method complexity.

The 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.

Click the title above to open The Column October 24, 2016 Europe & Asia issue, Volume 12, Number 19, in an interactive PDF format.

Click the title above to open The Column October 24, 2016 North American issue, Volume 12, Number 19, in an interactive PDF format.

This 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.

I 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.

A 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.

Phenomenex (Torrance, California, USA) has announced that it will be acquired by Danaher Corporation (Washington, D.C., USA), a Fortune 150 science and technology company.

This Tuesday, October 11 session of the 2016 Gulf Coast Conference will be held in room 371 D of the George R. Brown Convention Center in Houston, Texas.

The Tuesday afternoon session on gas chromatography (GC) applications includes three talks from instrument vendors.

The Wednesday afternoon session on multi-dimensional chromatography includes two talks from instrument vendors.

I am quite excited about some recent work we and others have performed related to fuels analysis using gas chromatography and vacuum ultraviolet spectroscopy (GC–VUV).

The Waters’ scientists responsible for the development of the QTOF mass spectrometer have been honoured at the annual Human Proteome Organization.

VUV Analytics has awarded Adam Hall their fall 2016 academic grant, providing Hall’s laboratory with VUV detectors to perform novel research in the field of forensic chemistry.

The ban on organotins has not led to a significant reduction in marine pollution according to research published by the Polish Academy of Sciences. Researchers found unacceptable levels of harmful organotins in the muscle and liver tissues of fish species collected in the southern Baltic Sea coastal zone, exceeding the good environmental status boundaries.

Dr. Herbert Knauer, found of Knauer Wissenschaftliche Geräte GmbH, celebrates his 85th birthday.

Membranes play an important role in living species as well as in technical processes, including in human care (for example, in kidney treatment). This instalment of Tips & Tricks discusses gel permeation chromatography/size-exclusion chromatography (GPC/SEC) for membrane analysis.

Wine can be a very complex matrix to analyze. The Column spoke to Alexandre Pons from Seguin-Moreau in Cognac, France, about his work analyzing volatile compounds in wine and why gas chromatography coupled to tandem mass spectrometry (GC–MS/MS) is his method of choice.

The first meeting in The Chromatographic Society’s diamond anniversary year brought together world-renowned speakers alongside past presidents of the Society and delegates from academia, industry, and scientific instrument and technology companies at the Institute of Engineering and Technology in central London. The presentations included discussions on gas chromatography (GC), liquid chromatography (LC), capillary electrochromatography (CEC), and supercritical fluid chromatography (SFC) from both academic and industrial perspectives - providing valuable insight into contemporary trends in chromatographic techniques.

Click the title above to open The Column October 05, 2016 Europe & Asia issue, Volume 12, Number 18, in an interactive PDF format.

Click the title above to open The Column October 05, 2016 North American issue, Volume 12, Number 18, in an interactive PDF format.

Click the title above to open the LCGC North America October 2016 Advances in Food and Beverage Analysis Supplement, Vol 34 No s10, in an interactive PDF format.

As a result of the rapidly growing cannabis industry, many testing laboratories are looking for efficient, reliable, and cost-effective analytical methods to analyze chemical residues, such as pesticides, mycotoxins, solvent residues, terpenes, and heavy metals, as well as cannabinoid concentration in cannabis-infused edibles and beverages. In this article, QuEChERS (quick, easy, cheap, effective, rugged and safe), a sample preparation technique widely adopted in the food testing industry, is introduced to the discipline of forensic testing as a viable method for the extraction of pesticides and cannabinoids in various complex sample matrices. Comparison of the claimed amounts of cannabinoids versus the actual amounts as well as the pesticide residue levels in edible and beverage samples is discussed.