Chemicals & Polymers
Application
Quantitative Analysis of Residual Solvents in Hemp Oil by Full Evaporation Headspace Gas Chromatography/ Mass [...]
The number of cannabis containing products, such as extracts, tinctures, edibles, waxes and oils, available in the United States has increased significantly due to changes in state law and the […]
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Application
Thermochemolysis – A Simple and Rapid Methylation Method Based on TMAH for Gas Chromographic Analysis of LIn [...]
In order to improve pyrolysis chromatographic analysis of materials that release polar functional groups e.g. carboxylic acids, a simple and rapid methylation method based on TDU pyrolysis/GC-MS in the presence […]
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Application
Thermal Gravimetric Analysis/Mass Spectrometry Simulation using the GERSTEL Automated Pyrolyzer
This study shows the use of the GERSTEL MPS/TDU/CIS with pyrolysis module for generating simulated thermal gravimetric mass spectrometry data (TGA-MS) of polymer samples. This mode of operation is also […]
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Application
Ultra-Fast Determination of the Hydrocarbon Oil Index by Gas Chromatography using LTM GC
Ultra-fast gas chromatographic methods for determination of the hydrocarbon oil index according to ISO 9377-2 were developed using a low thermal mass column heater (LTM). The column heater consists of […]
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Application
Elimination of Non-Volatile Sample Matrix Components After GC Injection using a Thermal Desorber and Microvial [...]
In this study we describe direct liquid injection techniques compatible with “dirty” samples containing non-volatile components. Using a glass liner that can be removed and replaced after the injection can […]
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Application
Stir Bar Sorptive Extraction: Recovery of Organic Acids and Amines
The determination of volatile and semi-volatile compounds in aqueous solutions using Stir Bar Sorptive Extraction (SBSE) as the extraction step is gaining acceptance in a wide variety of application areas […]
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Application
Stir Bar Sorptive Extraction: Capacity and Competition Effects
The determination of volatile and semi-volatile analytes in aqueous solutions using stir bar sorptive extraction (SBSE) as the extraction step is gaining acceptance in a wide variety of application areas […]
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Application
Quantitative Determination of Trace Analytes in Solid Materials by Thermal Extraction GC
Examples of optimized conditions for quantitation of residual hydrocarbons in polymeric packaging film and residual flavor components in recycled PET are shown. Techniques and equipment necessary for reliable calibration are […]
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Application
On-Line LC-GC Coupling – A New Method for the Determination of Alkylphenols in Environmental Samples
This paper describes an online LC-GC coupling system that allows fractions from an LC eluant stream to be transferred to a standard GC system. A large volume sampler equipped with […]
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