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LCGC North America

Whole blood analysis is an emerging trend in the field of bioanalysis. We developed a fast and simple protocol to extract and analyze a peptide, hepcidin, from whole blood. Sampling and extraction were carried out using volumetric absorptive microsampling (VAMS), a novel blood collection device that allows the sampling of a known blood volume independently from hematocrit. The composition of the extraction medium was optimized using an experimental design to get the most intense signal of hepcidin, considering different organic solvents and acidic additives.

Ted Szczerba, Technical Director of Chromatography and SFC Separations at Regis Technologies, overviews incorporating Supercritical Fluid Chromatography (SFC) into his separations lab. With over 30 years experience working with chiral compounds and over 10 years running SFC, he assesses the value of the technique versus the drawbacks of what is available in the field today. Learn about a typical screening day and this industry veteran's advice on what is needed for an effective separations process.

Your current contract laboratory and instrument provider may be familiar and comfortable, but, maintaining the status quo doesn’t lead to greater rewards. In fact, it often involves putting up with less-than-desired results. Join us in this executive summary to hear how Ajinomoto Althea develops unsurpassed solutions for biopharma companies, and how a team at Thermo Fisher Scientific has challenged the status quo to deliver uncompromised UHPLC.

The Column

Subcritical water chromatography (SBWC) is seen as an increasingly enticing prospect to replace high performance liquid chromatography (HPLC) in industrial settings because of its low costs and environmental impact. Yu Yang of East Carolina University, in Greenville, North Carolina, USA, has conducted research into this process for two decades. He recently spoke to Lewis Botcherby of The Column about his work, why companies should consider SBWC, and its role in pharmaceutical analysis.

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The Column

This year, LCGC is pleased to honour Debby Mangelings as the winner of the 2016 Emerging Leader in Chromatography Award. Mangelings received her award on Monday 7 March during an oral symposium at Pittcon 2016 in Atlanta, Georgia, USA.

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The Column

Researchers from Heilongjiang University of Chinese Medicine, China, have used ultrahigh-performance liquid chromatography coupled to mass spectrometry and metabolomics to investigate the metabolic networks of Alzheimer’s disease, identifying potential biomarkers and biochemical mechanisms.

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The Column

The literature on reversed-phase liquid chromatography (LC) of proteins is reasonably well developed, but not taught in the college classroom much. Kevin Schug therefore wants to focus on a stoichiometric displacement model for reversed-phase LC of proteins and why it is particularly insightful from a practical perspective.

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LCGC Europe

Magnetic nanoparticles (m-NPs) are becoming important in analytical chemistry as sorbents in dispersive solid-phase extraction (d-SPE) because they simplify the extraction process and save time as a result of their isolation from the sample matrix by an external magnetic field. Many synthetic processes have been developed to fabricate these nanomaterials and an additional coating step is usually included at the end of the synthesis to improve their stability and to avoid the formation of agglomerates. A wide variety of coatings have been used for this purpose to improve selectivity. This manuscript provides an overview of the different synthesis methods, coatings, and applications of m-NPs as sorbents in d-SPE.