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GC-MS – Multimedia

DETERMINATION OF THE QUALITY OF ACTIVE INGREDIENTS IN PAIN KILLERS USING GC-MS content piece image
Poster

DETERMINATION OF THE QUALITY OF ACTIVE INGREDIENTS IN PAIN KILLERS USING GC-MS

From this study, the pain killers sampled were found to have large error bars suggesting that there exist counterfeit drugs in the market. The brands mostly affected for analysis of acetaminophen were panadol, action, P500, P5500, elymol and neladol. The error bars for caffeine analysis were quite low indicating that all tablets either counterfeit or original maintained the same amount of this active ingredient.
TGA/IST16/GC/MS coupling : an advanced technique for LLDPE structure interpretation content piece image
Poster

TGA/IST16/GC/MS coupling : an advanced technique for LLDPE structure interpretation

An innovative TGA/IST16/GC/MS coupling is presented.
Analysis of Polymers, Additives and Contaminates in Medical Devices using Pyrolysis-GCMS content piece image
Poster

Analysis of Polymers, Additives and Contaminates in Medical Devices using Pyrolysis-GCMS

Pyrolysis GC-MS is a standard technique used to analyze industrial polymers. This poster will show the use of multiple temperature ramps to analyze for additives and contaminants, in addition to polymer identification, in several medical devices.
Video

Diagnosis of Disorders Affecting Steroid Synthesis and Metabolism by Mass Spectrometry

Despite all the progress in the proteomic and genomic research, the quantitation of steroids in biological samples is still needed for the establishment of the biochemical phenotype of disorders affecting steroid biosynthesis.
When Single Dimension GC Separations Fail: Exploring Real World Applications for Comprehensive Two=Dimensional GC (GCxGC) content piece image
Poster

When Single Dimension GC Separations Fail: Exploring Real World Applications for Comprehensive Two=Dimensional GC (GCxGC)

Examples will be highlighted for food/flavor/fragrance, metabolomic, and petrochemical application markets. The advantage in number of compounds detected and overall quality of their mass spectral library similarity scores, as compared to one-dimensional methods will be clearly demonstrated.
Non-target Screening of Contaminants in Paper-paperboard for Food Contact Materials content piece image
Poster

Non-target Screening of Contaminants in Paper-paperboard for Food Contact Materials

The aim of this work was non-targeted screening of xenobiotics in paper and paperboard packaging materials used for food packaging in the Czech Republic.
Fast and Efficient Analysis of Polynuclear Aromatic Hydrocarbons  in Edible Oils Using Dual-Layer SPE content piece image
Poster

Fast and Efficient Analysis of Polynuclear Aromatic Hydrocarbons in Edible Oils Using Dual-Layer SPE

A new dual-layer cartridge for the efficient extraction of PAHs from edible oils
MsCompare: An Untargeted LC & GC/MS Metabolomics Platform for Quality Control, Precise Deconvolution and Data Analysis content piece image
Poster

MsCompare: An Untargeted LC & GC/MS Metabolomics Platform for Quality Control, Precise Deconvolution and Data Analysis

A GC/MS or LC/MS workflow for Metabolomics applications includes a number of distinct steps: experimental design, sampling, sample preparation, data acquisition, data processing, deconvolution, identification and data interpretation.

The MsXelerator software includes Quality Control procedures and Analysis of Variance (ANOVA) to properly control each step in this workflow and to obtain reliable results for both quantitation and identification.
Matrix enhancement effect: A blessing or curse for gas chromatography? content piece image
Poster

Matrix enhancement effect: A blessing or curse for gas chromatography?

A sharp, narrow, and sensitive peak is a pre-condition for a sensitive GC analysis. Therefore, a protectant is needed to protect the analyte from any type of distortion for integration and to prevent overestimation. Existing solutions do not overcome these problems completely due to limitations. As the matrix enhancement problem originated from matrix components, its solution should come from similar components.
Simultaneous multi-determination and transfer of eight pesticide residues from green tea leaves to infusion using gas chromatography content piece image
Poster

Simultaneous multi-determination and transfer of eight pesticide residues from green tea leaves to infusion using gas chromatography

Acetonitrile was used as the extraction solvent with sodium chloride to enhance the partitioning of analytes into the organic phase. Recovery indicated good method accuracy and repeatability, and was within the acceptable range for residue determinations. The mere presence of pesticide residues in tea does not necessarily mean that the tea has become toxic and would pose a health hazard. We revealed that only a negligible or small percentage of pesticides in tea is transferred to the infusion.
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