Search: GERSTEL CIS 4, Application Note

Results 1 - 10 of 117

Results

Using Three Types of Twister Phases for Stir Bar Sorptive Extraction of Whisky, Wine and Fruit Juice

This paper describes a novel ethylene glycol- (EG) and silicone based combined sorbent phase developed for stir bar sorptive extraction (SBSE) using the GERSTEL Twister. EG-Silicone, polyacrylate (PA), and p ...

Resource - Susan Gilbert - 20th Apr 2012 - 0 comments

Benefits of Using Sample Enrichment Techniques (Headspace SPME, Twister SBSE, and Dynamic Headspace) to Determine Trace Level Analytes Present in a Herbal Based Liquor

This application note discusses different sample enrichment techniques available using the Multipurpose Sampler (MPS2 XL). A herbal based liquor was chosen for this comparison as this contains trace level an ...

Resource - Susan Gilbert - 11th Jan 2012 - 0 comments

Dynamic headspace (DHS) analysis using Full Evaporation Technique (FET) to quantify trace level analytes present in a herbal based liquor

Maintaining the quality of herbal based liquors is an important factor in their production. Slight differences in the ingredients of these beverages can drastically change the taste. Therefore, it is import ...

Resource - Susan Gilbert - 14th Dec 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

Formula Identification of Flavor Compounds in Beverages by SBSE-TD-2DGC with Selective Detection, Olfactometry, and Accurate Mass Measurement using a qMS

The combination of state-of-the-art analytical techniques, e.g. stir bar sorptive extraction (SBSE), thermal desorption (TD), heart-cutting 2DGC, simultaneous detection with qMS and Olfactometry or selective ...

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

Multiple Heart-Cutting 2D LTM-GC-MS with Stop Flow System for Simultaneous Determination of Off-Flavor Compounds in Wine

Recently, low thermal mass GC (LTM-GC) based on direct resistive heating principle has been developed. The small mass of the LTM-GC provides fast temperature programming rates combined with rapid cool-down f ...

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

Thermal Desorption Analysis of Perfluorinated Cycloalkanes

Client is investigating the use of perfluorinated cycloalkanes to replace compounds, such as sulphur hexafluoride, as tracers for air monitoring applications. He is interested in evaluating GERSTEL thermal d ...

Resource - Susan Gilbert - 27th Sep 2011 - 0 comments

Screening of Fresh Fruit Volatiles Utilizing Tenax TA Adsorbent Tubes, TDU and TDS 2/TDS A Thermal Desorption

Customer is interested in volatiles present in the headspace above fresh fruit as it ripens. Sampling is done by drawing approximately 100mL volume through a Tenax TA adsorbent tube. Samples were collected ...

Resource - Susan Gilbert - 27th Sep 2011 - 0 comments