Search: Agilent 7890 GC

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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

Fragrance Profiling of Consumer Products using a Fully Automated Dynamic Headspace System

Accurate qualitative and quantitative analysis of perfumed or flavoured products is essential to the flavor and fragrance industry. Especially when unknown samples need to be analysed traditional methods of ...

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

Determination of 2-Methylisoborneol, Geosmin and 2,4,6-Trichloroanisole in Drinking Water by Dynamic Headspace Coupled to Selectable 1D/2D GC-MS with Simultaneous Olfactory Detection

A method for the determination of trace amounts of off-flavour compounds such as 2-methyl isoborneol (MIB), geosmin and 2,4,6-trichloroanisole (TCA) in drinking water is described based on dynamic headspace c ...

Resource - Susan Gilbert - 17th Oct 2011 - 0 comments

Application of Selectable 1D/2D GC-Olfactometry/MS to the Analysis of Aroma Compounds in Wine

Identification of trace aroma compounds in complex sample like wine can be challenging. GC-Olfactometry/MS (GC-O/MS) allows not only evaluation of the aroma compounds, but also identification with mass spect ...

Resource - Susan Gilbert - 17th Oct 2011 - 0 comments

Automated QuEChERS Extraction for the Determination of Pesticide Residues in Foods using Gas Chromatography/Mass Spectrometry

One of the most important aspects of reducing pesticide exposure is monitoring of pesticide residues in foods. A number of analytical methods have been developed, many of them based on traditional liquid-liq ...

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

Comparison of Mold Odor Analysis in Water by Purge and Trap (PTC) and Solid-Phase Microextraction (SPME)

Taste and odor are important to consumers when it comes to drinking water. Two compounds that are responsible for many taste and odor issues are geosmin and 2-methylisoborneol. Both of these compounds are p ...

Resource - Susan Gilbert - 28th Jun 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

A New Purge Tool for Use with Automated Headspace Analysis

Static (equilibrium) headspace injection is commonly used for GC determination of volatiles in solid and liquid samples. Quantitative analysis can be performed using standard techniques, such as external or i ...

Resource - Susan Gilbert - 20th Dec 2010 - 0 comments

Automated Dynamic Headspace Sampling of Aqueous Samples using Replaceable Adsorbent Traps, Part II

Static (equilibrium) headspace sampling is commonly used for GC determination of volatiles in solid and liquid samples. Since this technique relies on the analyte partitioning between the sample and headspac ...

Resource - Susan Gilbert - 20th Dec 2010 - 0 comments

Determination of Aldehydes and Ketones in Oily Matrices using a Novel Dynamic Headspace Sampler Coupled to GC/MS

Fatty acids are of key importance to the food industry. Especially long chain polyunsaturated fatty acids (LC PUFA) are receiving more and more attention due to their positive influence on human health. LC ...

Resource - Susan Gilbert - 20th Dec 2010 - 0 comments