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Optimal VOC Method Parameters for the StratUm PTC Purge & Trap Concentrator

Environmental laboratories have utilized the Purge & Trap sample concentration technique for over 30 years. This classical technique offers many benefits in regards to increasing sample throughput without ...

Resource - Susan Gilbert - 20th Dec 2011 - 0 comments

Techniques for Optimizing the Analysis of Volatile Organic Compounds in Water Using Purge-and-Trap/GC/MS

The analysis of volatile organic compounds in water is normally accomplished by purge-and-trap/gas chromatography/mass spectrometry. U.S.EPA method 8260B with purge and trap sample introduction widely used f ...

Resource - Susan Gilbert - 20th Dec 2011 - 0 comments

Analysis of Fuel Oxygenates in Water by Purge and Trap

Oxygenates such as methyl tert-butyl ether (MTBE) have been added to gasoline since the late 1970’s. In 1990 congress passed the Clean Air Act, and in 1995, implemented the requirements which led to an incre ...

Resource - Susan Gilbert - 20th Dec 2011 - 0 comments

Residual Solvents by Teledyne Tekmar HT3 Headspace Autosampler and Varian 4000 GCMS

Many solvents are used in the manufacturing of pharmaceutical products, substances, and excipients. In an order to protect the health of the patient, pharmaceutical companies have adopted methods that will r ...

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

The Use of the Teledyne Tekmar HT3 for Analysing Selected Residual Solvents in Pharmaceutical Products and Ingredients

Many different solvents are used in the manufacture of pharmaceutical products. To protect the health of the patient, the International Conference on Harmonization (ICH) has published guidelines on the classi ...

Resource - admin - 19th Dec 2011 - 0 comments

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

Implementation of USP <467> 'Residual Solvents' using a GERSTEL MPS 2 Syringe Based Headspace Autosampler

USP <467> Residual Solvents is a general chapter in the US Pharmacopeia that describes a headspace gas chromatographic method for the determination of residual solvents in pharmaceutical products, active ...

Resource - Susan Gilbert - 21st Dec 2010 - 0 comments

Rapid Sub-ppb Headspace Analysis of Selected Red List Solvents & THMs in Water using the GERSTEL MACH and Agilent 5975 GC-MS

A headspace-sampling (HS) method has been developed for rapid quantitation of sub-ppb level contamination of selected red list solvents and trihalomethanes (THMs) in water samples. The 5.25 minute cycle time ...

Resource - admin - 9th Sep 2010 - 0 comments