Search: GERSTEL TDS 2

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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

Residual Solvent in PE/Ca(OH)2 Sheets

Specialty filtration product is prepared from ultra high MW Polyethylene, Ca(OH)2 and low levels of KOH and NaOH. Some samples may contain up to 15% water. Interested in measuring residual hexane, 1-butanol a ...

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

Fragrance in Soap and Soap Packaging Materials

Interested in mounting a TDSA/CIS on a Varian 3800/Saturn ITD MS. To see TDSA/MSD performance on the Agilent 6890/5973 system, run thermal extraction of Irish Spring soap and soap packaging materials. Used lo ...

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

Determination of Acetic Acid and Neodecanoic Acid in a Polyvinylester Wax by Thermal desorption and GC-MS Analysis

Thermal desorption and GC-MS analysis is applied to the determination of acetic acid and neodecanoic acid, which are low temperature pyrolysis products of a polyvinylester wax. ...

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

Siloxanes in Gaseous Samples

Sewage gas and gases emitting from dumping grounds can be used for power generation, but their possible siloxane content causes problems: engines and turbines are damaged through SiO2 formed during combustion ...

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

Flavor Profiling of Different Olive Oils with Racidity-Monitoring by Thermal Extraction GC/MS

Flavor is an important quality criterion for virgin olive oils. The identification of the compounds causing the flavour or off-flavour therefore is the key for quality control. Their analysis in olive oils us ...

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

Flavor Profiling of Different Olive Oils with Rancidity-Monitoring by Thermal Extraction GC/MS

Flavor is an important quality criterion for virgin olive oils. The identification of the compounds causing the flavour or off-flavour therefore is the key for quality control. Their analysis in olive oils us ...

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