An Italian Sabbatical to Bring 2D Chromatography to Texas
January 13th 2016After 10 years at U.T. Arlington, I have decided it is time to take one of the best opportunities afforded to researchers in an academic faculty position-to travel abroad and assimilate new techniques into my repertoire to enhance future research activities.
Scaled Down EPA Methods 8270 and 625: Solid Phase Extraction of 100 mL Samples or Less
January 8th 2016The EPA has updated methods 8270 (8270E) and 625 (625.1) to both now permit the use of solid phase extraction (SPE) to analyze for semi-volatile organic compounds (SVOCs) in aqueous samples and TCLP leachates. As a result of new advancements in instrumental sensitivity, smaller sample sizes can now be utilized to obtain required method detection limits, reducing solvent and standard consumptions and overall sample preparation time. This application note describes a reliable, efficient, and cost-effective SPE method utilizing two stacked cartridges for the extraction of 100 mL water samples or less.
Surfactant-Mediated Extractions, Part I: Cloud-Point Extraction
January 1st 2016Cloud-point extraction (CPE) manipulates temperature and surfactant concentration to move aqueous solutes into a micelle phase for separation. Although CPE has been around for some time, it is still considered an emerging technique. Much of the development, and most applications, of CPE have dealt with extraction and preconcentration of inorganic solutes. More recently, attention has turned to the use of CPE in the isolation of organic solutes. This month, we review how CPE works and focus on applications for extracting organics.
In Defense of Nitrogen as a Carrier for Capillary GC
December 14th 2015There has been much written about the use of nitrogen as a carrier gas for capillary GC. Formerly, to say it wasn’t any good. Latterly to say that it’s pretty good and a better alternative to Helium than hydrogen from a practicality standpoint.
Future Needs of HPLC and UHPLC Column Technology
December 1st 2015In his final “Column Watch” article, Ron Majors looks into his crystal ball and discusses future needs in the area of HPLC/UHPLC column technology and related instrumentation. He looks at where current technology may be heading and makes a prediction that monolith-based columns may still have a rightful place in the HPLC/UHPLC laboratory .This article concludes his duration as a monthly columnist for LCGC.
David Hage Wins Outstanding Achievements in Separation Science Award
December 1st 2015Professor David S. Hage was awarded the Outstanding Achievements in Separation Science Award at this year’s Eastern Analytical Symposium and Exposition (EAS). The award honours analytical chemists who have distinguished career achievements and advanced their fields of study with superior work by developing theory, technique or instrumentation.
Chris Enke Wins the Outstanding Achievements in the Fields of Analytical Chemistry Award
December 1st 2015Professor Chris Enke won the Outstanding Achievements in the Fields of Analytical Chemistry Award at The Eastern Analytical Symposium and Exposition (EAS) this year. The award honours analytical chemists who have distinguished career achievements and advanced their fields of study with superior work by developing theory, technique or instrumentation.
Emile A. Schweikert Wins Outstanding Achievements in Mass Spectrometry Award
December 1st 2015The 2015 Eastern Analytical Symposium and Exposition (EAS) Award for Outstanding Achievements in Mass Spectrometry has been awarded to Emile A. Schweikert, professor of Chemistry at Texas A&M University and Director of the University’s Center for Chemical Characterization & Analysis.
Future Needs of HPLC and UHPLC Column Technology
December 1st 2015In his final “Column Watch” instalment, Ron Majors looks into his crystal ball and discusses future needs in the areas of high performance liquid chromatography (HPLC) and ultrahigh-pressure liquid chromatography (UHPLC) column technology and related instrumentation.