Search: GERSTEL MACH

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Direct Thermal Extraction with Automated Liquid Calibration for the Quantification of Analytes in Solid Matrices

Direct thermal extraction is a sensitive technique for the analysis of residual compounds in solid matrices such as polymers, films, powders and fibres. This approach can be used for both qualitative identif ...

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

Six Times Faster Screening of Pesticide Multi-Residues in Aqueous Samples

SBSE can be performed in parallel on two aliquots of the same sample under different extraction conditions using two Twisters. Using this dual Twister approach, the two extractions can be optimized individua ...

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

Fast Screening of Apple Flavor Compounds by SPME in Combination with Fast Capillary GC-MS using a Modular Accelerated Column Heater (MACH) and Quadrupole Mass Spectrometric Detector (qMSD)

A fast HS-SPME-CGC-MSD method for the analysis of flavour compounds of apples was developed. A complete profile was obtained after solid phase micro-extraction within 3 minutes GC run-time using a modular ac ...

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

Automated SPE and Fast GC-ECD Analysis of PCBs in Waste Oil

A fast SPE-GC-ECD method for the analysis of PCBs in waste oil was developed. A complete profile was obtained following SPE with a 12 minute GC run-time using a modular accelerated column heater (MACH). Full ...

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

Fast Screening of Pesticide Multiresidues in Aqueous Samples by Dual Stir Bar Sorptive Extraction (Dual SBSE) and Thermal Desorption – Fast GC/MS using a Modular Accelerated Column Heater (MACH)

A method for fast screening of pesticide multiresidues in aqueous samples using dual stir bar sorptive extraction (dual SBSE) – thermal desorption (TD) – fast GC/MS has been developed. Recovery of 82 pesticid ...

Resource - Susan Gilbert - 14th 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

Rapid Multidimensional GC Analysis of Trace Drugs in Complex Matrices

Reduction in analysis time is an important goal for easing the burden of large sample sets associated with routine screening of blood samples and sample sets produced from drug metabolism studies. This study ...

Resource - Susan Gilbert - 9th Sep 2010 - 0 comments

Multidimensional GC Analysis of Complex Samples

To perform chromatographic analysis of real-world samples, analysts often must deal with either complex sample types such as essential oils and petroleum fractions, or complex matrices like biological fluids, ...

Resource - Susan Gilbert - 9th Sep 2010 - 0 comments

A Selectable Single or Multi-dimensional GC System with Heart-Cut Fraction Collection and Dual Detection for Trace Analysis of Complex Samples

Identification of important trace components in complex samples like fragrances, natural products, petroleum fractions or polymers can be challenging. Achieving the mass on column and resolution necessary to ...

Resource - Susan Gilbert - 9th Sep 2010 - 0 comments

Rapid Sub-ppb Headspace Analysis of Selected Red List Solvents & THMs in Water using the GERSTEL MACH and Agilent 5975 GC-MS

A headspace-sampling (HS) method has been developed for rapid quantitation of sub-ppb level contamination of selected red list solvents and trihalomethanes (THMs) in water samples. The 5.25 minute cycle time ...

Resource - admin - 9th Sep 2010 - 0 comments