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GC-MS – Multimedia

Poster

PAL SPME Arrow for the determination of volatile organic compounds in water by GC-MS after headspace-solid-phase microextraction (HS-SPME) according to German standard method DIN 38 407-41

Robust and sensitive determination of volatile organic compounds in water by headspace solid phase microextraction (HS-SPME) according to German standard method DIN 38 407-41
6 Milestones in Metabolomics: Driving our understanding of the metabolome content piece image
Listicle

6 Milestones in Metabolomics: Driving our understanding of the metabolome

Ever more sophisticated tools are being developed to study metabolites and increase our understanding of the metabolome. But what were the developments and discoveries that enabled this field to develop?
Testing Requirements for Cannabis - Multiple Technologies content piece image
Video

Testing Requirements for Cannabis - Multiple Technologies

This talk presents an overview of the newly emerging legalized cannabis market from the perspective of scientific laboratory analyses.
Screening Medical Marijuana for Pesticides by GC-MS/MS content piece image
Poster

Screening Medical Marijuana for Pesticides by GC-MS/MS

This poster describes streamlined method development process for analysis of pesticide residues in MM using a QuEChERS sample preparation method, followed by GC-MS/MS detection and quantitation.
App Note / Case Study

Cannabis Analysis: Potency Testing Identification and Quantification of THC and CBD by GC/FID and GC/MS

This application note will concentrate on the potency identification and quantification of THC and CBD in cannabis by Gas Chromatography.
Determination of Volatile Organic Compounds in Water by GC-MS after Headspace-Solid-Phase Microextraction (HS-SPME) content piece image
Poster

Determination of Volatile Organic Compounds in Water by GC-MS after Headspace-Solid-Phase Microextraction (HS-SPME)

The German standard DIN 38 407-41 describes a method for the analysis of volatile compounds from aqueous samples by headspace-solid-phase microextraction (HS-SPME).
Optimization of a Vacuum Ultraviolet Photoionization source for Gas Chromatography used with a High Resolution Time of Flight Mass Spectrometer content piece image
Poster

Optimization of a Vacuum Ultraviolet Photoionization source for GC used with a High Resolution TOFMS

-Tune solution allows optimization of ion source parameters for
both proton transfer and direct ionization
-Independent ionization processes exist for M+ and MH+
-Optimizing for dopant signal intensity yields inferior results
-Degree of fragmentation remains relatively constant over a
range of source conditions
Analysis of Organic Marker Compounds and Hazardous Organic Compounds by GC/MS to Identify Contamination, Counterfeiting and Adulteration of Spices content piece image
Poster

The Use of GC/MS to Identify Contamination, Counterfeiting and Adulteration of Spices

Our previous study of spices was designed to evaluate the metal content in the spices for evidence of contamination by heavy metals or for adulteration and counterfeiting by notable concentrations of wear or additive metals. This study targeted the same spice samples to quantify the characteristic primary and secondary market compounds for each spice group.
A Novel Benchtop Time-of-Flight GC-MS System for High Performance Analysis of Human Urine content piece image
Poster

A Novel Benchtop Time-of-Flight GC-MS System for High Performance Analysis of Human Urine

A workflow was developed and implemented for the effective comparison of urine. It involved the preparation of stable compounds through derivatization, data acquisition using a high performance benchtop TOFMS, comprehensive data processing (NonTarget Deconvolution™), and quick retrospective analysis of rich datasets using Target Analyte Finding.
Accurate Mass Spectral Database: Harnessing the Power of High Performance Mass Spectrometry at Long Last content piece image
Poster

Accurate Mass Spectral Database: Harnessing the Power of High Performance Mass Spectrometry at Long Last

Standard mixtures comprising of alkanes, PAHs, semivolatiles, and pesticides were analyzed using a high resolution time-of-flight (HRTOF) mass spectrometer—Pegasus GC-HRT (LECO Corporation, Saint Joseph,MI)—at 10 spectra-per-second (m/z40–300) in high resolution mode (25,000 at FWHH). The resulting chromatographic peaks were automatically found, deconvoluted, and curated into an Accurate Mass Library (AML).
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