Search: Agilent 6890 GC, Application Note

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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

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

Analysis of Low Concentration Oxygenates in Environmental Water Samples Using Purge and Trap Concentration and Gas Chromatography/Mass Spectrometry

The frequent use of oxygenate additives in gasoline to produce clean burning fuels has led to widespread and well documentated contamination of ground water and drinking water supplies. The phasing out of me ...

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

Reducing Cycle Times with the Velocity XPT Purge and Trap Sample Concentrator

The analysis of Volatile Organic Compounds (VOCs) by Purge and Trap is one of the largest analyses in the environmental laboratory industry. High sample throughput is necessary to improve productivity, one a ...

Resource - admin - 20th Dec 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

Screening of Flavor Volatiles in Exhaled Breath after Food Mastication Utilizing PDMS Foam Tubes, TDU Thermal Desorption and GC-TOFMS

Customer is interested in measuring flavour release characteristics of cream cheese after samples have been tasted. The analytical technique under investigation consists of screening volatiles from exhaled b ...

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

Screening of Food Volatiles in Exhaled Breath Utilizing PDMS Foam Tubes and TDU Thermal Desorption

Customer is interested in screening the volatiles from exhaled breath utilizing PDMS foam TDU tubes and thermal desorption. The current method involves chewing the sample, exhaling the volatiles into a glass ...

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

Elimination of Non-Volatile Sample Matrix Components After GC Injection using a Thermal Desorber and Microvial Inserts

GC analysis of complex sample types containing non-volatile materials normally requires extensive sample preparation and cleanup prior to injection to eliminate the interference from non-volatile components. ...

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

Evaluation of TDU/CIS 4 and TDS/CIS 4 for the Analysis of Low Level Analytes in Polypropylene Syringe Barrels by Direct Thermal Extraction

Customer is interested in the direct thermal analysis of polypropylene syringe barrels. Some of the analytes of interest include fatty acids, butylated hydroxytoluene (BHT), octadecanol, and Irganox 1076. ...

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