All News

LCGC North America

This 5:00 pm lecture will be given by Fraser Stoddart of Northwestern University. Stoddart was the 2016 Nobel Laureate in Chemistry.

Advanced Nanomaterials

LCGC North America

John Stephens of Bidwell Training Center (Pittsburgh, Pennsylvania) presides over this session, to be held in Room 118B and starting at 8:30 am.

The Column

Agilent Technologies has awarded Paul Bonnington and Kimbal Marriott an Agilent Thought Leader Award in support of their innovative research into data analytics, machine learning, artificial intelligence, and information visualization.

The Column

Knauer has been ranked as one of the top employers in Germany for 2019, according to a study by 3.works GmbH, a Düsseldorf-based employment research institute.

Virtually exclusively, liquid chromatography–mass spectrometry (LC–MS)-based assays for protein quantitation rely on bottom-up strategies, where the protein is initially digested into constituent peptides during sample preparation. Top-down intact protein quantitation, especially using affordable, low resolution triple quadrupole (QQQ) mass spectrometers, has been largely unexplored.

figure 1 L.png

LCGC Europe

Solid-phase microextraction (SPME) was introduced nearly 30 years ago and since that time has matured into a widely used tool in the arsenal of sample preparation techniques. Simultaneously, it has spawned a host of related techniques where sorbent coatings are placed on stir bars, magnetic particles, vial walls, and so on. Over the past few years, several advances in SPME have been developed, including increasing the sorbent surface area available for extraction, accommodating direct analysis by mass spectrometry (MS), and sorbent overcoating to resist fouling by sugars, lipids, and other macromolecules present in some sample types. These advances are discussed in this month’s instalment. The use of SPME for microsampling of biological systems, so-called bio-SPME, will be the focus of Part 2.

table 1 L1552489340192.png

LCGC Europe

One millimetre internal diameter liquid chromatography columns are available from many manufacturers. In this article, the utility of 1.0-mm internal diameter (i.d.) columns, and the arenas in which they play a relatively strong role, are investigated. Further, the advantages and disadvantages of 1.0 mm diameter columns are contrasted with both larger- and smaller-bore formats.

Figure 11552571253704.png

The Application Notebook

Antibody-dependent cell-mediated cytotoxicity (ADCC) is a crucial mechanism of action (MoA) of anti-tumour therapeutic antibodies and FcγIIIa receptor plays a key role in this process by interacting with the N-glycans of IgG Fc regions. Hence, affinity chromatography on Fc receptor ligands can deliver valuable information about expected ADCC activity and mAb glycoform distribution.