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HS-SPME-GC–MS was combined with OPLS-DA data analysis to tentatively identify eight chemical markers to differentiate the geographical origins of cigar leaf samples.

Headspace Solid-Phase Microextraction Coupled with Gas Chromatography–Mass Spectrometry (HS-SPME-GC–MS) for the Characterization of Cigar Leaves

Interest in three-dimensional (3D) printing technology is expanding rapidly. What impact can it have in mass spectrometry? Robert Winkler, of the Center for Research and Advanced Studies Irapuato, in Guanajuato, Mexico, is exploring this question. We recently spoke with Prof. Winkler about this work.

Three-Dimensional Printing in Ion Mobility and Mass Spectrometry

Ensuring complete overlapping (coelution) of analyte and internal standard peaks can be critical for eliminating matrix effects in LC–MS/MS analysis.

The Importance of Complete Overlapping of Analyte and Internal Standard Peaks in Eliminating Matrix Effects with Liquid Chromatography–Mass Spectrometry (LC–MS)

This 7-minute method enables easy analysis of bitter flavors in beer.


Liquid Chromatography–Mass Spectrometry (LC–MS) Analysis of Hop-Derived Humulone and Isohumulone Constituents in Beer: The Bitter Truth of Hops Utilization During Brewing

At ChromTalks, experienced speakers shared mistakes made during their careers.

Hard-Won Lessons in Gas Chromatography

Mary Ellen McNally knows how to solve complex and pressing problems in the industry.

Solving Challenges in the Agricultural Industry Using Separation Science: An Interview with Mary Ellen McNally

Modern ion mobility–mass spectrometry (IM–MS) is a key separation technology for detailed molecular characterization studies and also as part of emerging data acquisition strategies for demanding small molecule and several applications. Here is what you need to know.

Ion Mobility–Mass Spectrometry (IM–MS): Enhancing Performance of Analytical Methods

Kevin A. Schug is a Full Professor and Shimadzu Distinguished Professor of Analytical Chemistry in the Department of Chemistry & Biochemistry at The University of Texas (UT) at Arlington. He joined the faculty at UT Arlington in 2005 after completing a Ph.D. in Chemistry at Virginia Tech under the direction of Prof. Harold M. McNair and a post-doctoral fellowship at the University of Vienna under Prof. Wolfgang Lindner. Research in the Schug group spans fundamental and applied areas of separation science and mass spectrometry. Schug was named the LCGC Emerging Leader in Chromatography in 2009, and most recently has been named the 2012 American Chemical Society Division of Analytical Chemistry Young Investigator in Separation Science awardee.

The petroleum industry appears to be making significant strides to improve the environmental stewardship and operational efficiency of energy production by implementing new technologies and capitalizing on previously wasted resources like produced water and flare gas. Nonetheless, many questions still remain about the management of aging or even abandoned infrastructure because abandoned production wells provide a potential for undocumented contamination events.

The LCGC Blog: The Analytical Arsenal for Point Source Attribution

Analysis of extractables and leachables (E&L) from plastic packaging is of great importance for pharmaceutical product safety. Accurate and rapid identification of unknown compounds in E&L is often complex and challenging. To address this challenge, we demonstrate a quick method for oligomer determination using LC–QTOF-MS.

A Quick Approach to Screen Oligomers from Extractables Studies Using Liquid Chromatography–Quadrupole Time-of-Flight Mass Spectrometry (LC–QTOF-MS)

Supplementing short pulse lasers with laser postionization increases ionization yields for desorption and ablation of solid samples in mass spectrometry. Here, we give an overview of the mechanisms and technical requirements for molecular photoionization in femtosecond (fs) laser desorption postionization mass spectrometry (LDPI-MS).

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