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Parts Per Trillion Determination of Volatile Organic Compounds in Water using Automated Headspace Extraction with the GERSTEL MPS and CTS-2 Cryofocusing Unit on an Agilent GC-MS

Static headspace extraction with gas chromatography-mass spectrometry (HS-GC/MS) is an established technique for the determination of volatile organic compounds (VOCs) in drinking water and waste water. Anal ...

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

Rapid Automated Analysis of Benzene in Soft Drinks

In March 2006 the Food Standards Agency published the results of a survey which was designed to investigate the levels of benzene in 150 soft drinks in the UK. Although benzene was not detectable in the majo ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

Improvements in Productivity Using the Fast GC Bundle

This application note details improvements where the analysis desires a single ramp program, for multi-ramp0 applications please refer to application note AS72. Improvements were achieved by using the innova ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

Investigations into the Automated Online Solid Phase Extraction and GC-MS Analysis of Metaldehyde from Water Samples

This application note describes preliminary work for an online, automated method for the extraction of metaldehyde from water samples, utilizing the GERSTEL Solid Phase Extraction (SPE) station, based upon an ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

Use of the Teledyne Tekmar AtomX Purge and Trap for the Simultaneous Determination of Target Compounds for EPA 8260 on an Agilent GC-MS

Purge and trap concentration before gas chromatography-mass spectrometry (GC-MS) is one of the most common techniques worldwide for determination of volatile organic compounds (VOC) in soils and water. Sub- ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

Online Solid Phase Extraction of Total Petroleum Hydrocarbons from Water Samples

An automated, on-line, Solid Phase Extraction (SPE) method has been developed to extract Total Petroleum Hydrocarbons (TPHs) in the C10-C40 range from water. The system is able to add the required volumes of ...

Resource - admin - 9th Sep 2010 - 0 comments

Increased Sensitivity of Odour Compounds by Headspace Analysis

The GERSTEL Dynamic Headspace (DHS) sampler enables significantly greater levels of sensitivity for headspace analyses. This is of value to analysts working with odour compounds since the odour threshold of ...

Resource - admin - 9th Sep 2010 - 0 comments

Increase in Flavour Profile Sensitivity using Twister Stir Bar Sorptive Extraction

The flavour profile of orange juice was analysed to investigate the effectiveness of five different techniques for the analysis of volatile and semi volatile compounds. The techniques used were static headsp ...

Resource - admin - 9th Sep 2010 - 0 comments

Determination of Malodourous Compounds in Water by Twister Stir Bar Sorptive Extraction

To provide high quality drinking water, malodourous compounds have to be monitored and controlled. Twister stir bar sorptive extraction (SBSE) provides an easy, reliable, and sensitive solvent free extractio ...

Resource - admin - 9th Sep 2010 - 0 comments

Fully Automated Online Solid Phase Extraction and GC-MS Analysis of Polycyclic Aromatic Hydrocarbons from Water Samples

An automated, on-line, Solid Phase Extraction (SPE) method has been developed to extract Polycyclic Aromatic Hydrocarbons (PAHs) from water. The system is able to add the required volumes of standard and int ...

Resource - admin - 9th Sep 2010 - 0 comments