Search: VOCs, Thermal Desorption

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Determination of Volatiles in Polyethylene and Polypropylene Pellets by Direct Thermal Extraction

This note shows the performance of the Gerstel TDS/TDSA system for determination of volatiles in polyethylene and polypropylene pellet samples by direct thermal extraction. Comparison of refocusing on a Tenax ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Volatiles in Polycarbonate Pellets

Polycarbonate pellets are analyzed for emission of volatiles. Customer was especially interested in the emission of volatiles at the softening point (140-160°C) and the processing temperature (280°C), respect ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

TOPAS / TDS D – Badge-Type Thermodesorption Passive Sampler Based on Tenax for Air Sampling - Development Study

The TOPAS / TDS D system combines the advantages of the passive sampling of badge-type passive samplers with thermal desorption for sample transfer to the gas chromatography system. The large surface and the ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Quantitative Determination of Trace Analytes in Solid Materials by Thermal Extraction GC

Direct thermal extraction of solids has most commonly been used for qualitative identification of trace materials such as additives, impurities and residual monomer or solvents. The technique has many benefit ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Volatile Organic Compounds from Adhesives and their Contribution to Indoor Air Problems

Carpets for office use are nowadays in most cases applied with water-based adhesives. During the last decade the complaints about odours and emission of volatile organic compounds from these fitted carpets ha ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Characterization of Biogenic Emissions by Online Thermal Desorption Gas Chromatography-Mass Spectrometry

The novel GERSTEL Online TDS G was developed to allow fast, reliable and continuous analysis of airborne compounds. For the described application the total analysis time, including GC runtime, is about 1 hour ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Breath Analysis from Patients with Metabolic Disorders: GC-MS Analysis with a Combined Thermodesorption - Cooled Injection System

The combination of a new thermodesorption module with a cooled injection system (TDS-2,CIS-3, Gerstel, Mülheim, Germany) now provides a powerful thermodesorption system for direct analysis of volatile trace c ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Direct Thermal Desorption GC/MS Analysis of Automotive Air Charcoal Filters

The analysis of volatile organic contaminants in air trapped on an automotive air charcoal filter is usually carried out using standard liquid extraction followed by GC/MS analysis of the extract. This standa ...

Resource - Susan Gilbert - 19th Apr 2011 - 0 comments

Design, Performance and Applicability of a Multi-Functional Thermodesorption System for Trace Analysis in Capillary GC

Thermodesorption is a well-known technique for the analysis of volatile organic contaminants in air normally adsorbed on porous polymers and has been previously discussed [1]. This operation principle can als ...

Resource - Susan Gilbert - 14th Apr 2011 - 0 comments

Analysis of Wet Samples by Direct Thermal Desorption GC

The analysis of volatiles in solids is a common analytical problem. Examples include volatile aroma compounds in foods (coffee, tea, herbs), residual fragrances from soaps and fabric softeners on textiles, an ...

Resource - Susan Gilbert - 7th Jan 2011 - 0 comments