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Benzene in Soft Drinks by Teledyne Tekmar HT3 Headspace Sampler

This white paper presents a method that demonstrates the ability of the HT3 Headspace Autosampler to analyze Benzene in soft drinks at low detection levels. Benzene, a known carcinogen, is naturally occurrin ...

Resource - Susan Gilbert - 19th Dec 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

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

Analysis of Plasticizers in Medical Products by GC-MS 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

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

Safe and Efficient Detection of Chloramphenicol in Food using Automated SPE

Solid Phase Extraction (SPE) using standard cartridges is widely regarded as the method of choice to extract analytes from samples with complex matrices or to extract and concentrate analytes from a wide vari ...

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

Application of Stir Bar Sorptive Extraction (SBSE) Coupled to Thermal Desorption GC-MS for Determination of Ultra-Trace Level Compounds in Aqueous Samples

During the past decade, miniaturized and solvent-less sample preparation techniques based on sorptive extraction, e.g. solid phase micro-extraction (SPME), have proven to be simple, fast and environmentally f ...

Resource - Susan Gilbert - 13th Apr 2011 - 0 comments

Analysis of Trace Components in Urine Utilizing Twister SBSE & TDS2/TDSA Thermal Desorption

Customer is interested in Twister SBSE & TDS2/TDSA thermal desorption for the analysis of trace components in urine. Samples were prepared by the customer as follows: 2mls of urine was adjusted to pH 2.1 ...

Resource - Susan Gilbert - 26th Jan 2011 - 0 comments

SBSE of Trace Volatiles in Bottled Water

Purge & trap GC is normally used to do trace volatile analysis in bottled water. Compounds of interest include C4-C13 straight-chain aldehydes, ketones and acids. Interested in simplifying sample preparat ...

Resource - Susan Gilbert - 26th Jan 2011 - 0 comments