The Retention Gap Effect

In this LCGC International interview with Beatrice Campanella from the Institute of Chemistry of Organometallic Compounds (ICCOM) in Pisa, Italy, which is part of the Italian National Research Council (CNR), we discuss her recent research work published in Food Chemistry on the subject of a method for quantifying methionine and selenomethionine in food matrices using gas chromatography–mass spectrometry (GC–MS) with aqueous derivatization by triethyloxonium salts (1).

Here is some of the most popular content posted on LCGC International this week.

Separation scientists frequently encounter critical pairs that are difficult to separate in a complex mixture. To save time and expensive solvents, an effective alternative to conventional screening protocols or mathematical peak width reduction is called iterative curve fitting.

Messina Institute of Technology scientists used gas chromatography–mass spectrometry (GC–MS) to profile illegal samples of Cannabis sativa L.

LCGC International spoke with Jim Gearing, Associate Vice President of Marketing, Agilent Gas Phase Separations Division; Massimo Santoro, Group Business Development Director at Markes International; Ed Connor, GC Product Manager at Peak Scientific; and Bruce Richter, Vice President of Research & Development at Restek Corporation.

LCGC International spoke to Phil Marriott and Humberto Bizzo about a recent paper they published identifying the incorrect use of retention indices in gas chromatography and how this problem can be rectified in practice.