Displaying  20  of 47 presentations
Title and Description
Utilizing Hydrogen Carrier Gas for Fast GC-MS

Hydrogen as a carrier gas for GC-TOFMS analysis is explored.

POPs in Dust Using MMS GCxGC-HRT

NACRW 2021

Comprehensive Characterization of Household Dust Samples Using a Multi-Mode Source, Enhanced Chromatographic Resolution, and High-Resolution Mass Spectrometry

ASMS 2021

Evaluation of HR-TOFMS with the Multi-Mode Ion Source and the Automated Direct Inlet Probe

ASMS 2021

Fisher ratio analysis for metabolite discovery in Pacu fish

Tile-based Fisher ratio (F-ratio) analysis is used to discover and quantify metabolites in Argentinian pacu fish, using data collected by comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GCxGC-TOFMS) via a LECO Pegasus BT 4D instrument.

Implementation of Fisher Ratio Analysis to Improve Classification of Sulfur-Contaminated Jet Fuels using Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry Data

Tile-based Fisher ratio (F-ratio) analysis is a supervised chemometric method for the discovery of analytes in comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GCxGC-TOFMS) datasets.

Breath Volatile Compounds in Asthma Patients

Jean-Francois Focant from the University of Liege (Belgium) discusses utilizing two-dimensional gas chromatography to study volatile compounds in breath samples of asthma patients.

Ion Source Robustness on the StayClean Ion Source

Highly Sensitive TOF Mass Spectrometry Allows for New User-friendly Flow Modulator Design for GCxGC

Is a Never-Clean Ion Source Possible? Is it Possible to Prove It?

Direct Extraction EI Source for GC-TOFMS and GCxGC-TOFMS

ASMS 2018Direct extraction EI sources used in GC-TOFMS and GCxGC-TOFMS create ions from neutral analytes, as well as from the ion packets that are pulsed down the TOF drift region.

High-speed Analysis: Combining Fast GC with Time-of-Flight Mass Spectrometry for Complex Sample Analysis in Under One Minute

Pesticide Residue Analysis: Fast and Flexible Findings

Dramatic expansion of pesticides utilized in food production requires improved techniques to analyze samples for quality.

Comparison of Smoker and Non-Smoker Urine using Comprehensive Two-Dimensional GC High Performance TOF-MS

Pittcon 2018

GCxGC Method Development using Software

Simply GCxGC, free software for GCxGC method development, is explored.

High Throughput Qualitative and Quantitative Analysis of Drugs of Abuse in Human Urine

Illicit drug use by teenagers and young adults continues to increase in the United States. Many forensic laboratories are experiencing increased workloads and reduced resources.

Jelly Bean Flavors BT-GC-TOFMS

GCxGC-HRMS: Combining Multidimensional GC with Ultra High Resolution Time-of-Flight Mass Spectrometry for Comprehensive Analysis of Complex Samples

Accurate Deconvolution by Exploiting Differential Expressions

ASMS 2017A set of chromatography-mass spectrometry data for multiple related samples may be considered as a tensor with spectral, retention, and experimental dimensions.

Determining High-Concentration Aromatic Compounds in Gasolines (ASTM D5769) Using CG-TOFMS

International Symposium on Chromatography (ISC) 2016ASTM D5769 is a widely accepted standard method used in the petroleum industry for determination of benzene, toluene, and total aromatics in finished gasolines by GC-MS. A common difficulty encountered with this method is the concern with saturation of the ion source, which leads to nonlinearity in calibration curves, especially for the quantification of the high-concentration aromatics, such as toluene.