Search: Plant Material

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Multi-Residue Analysis of Pesticides in Samples of Lettuce and Peas Using Large Volume-Difficult Matrix Introduction-Gas Chromatography-Mass Spectrometry (LV-DMI-GC-MS)

Ethyl acetate is widely used as a solvent for the multi-residue extraction of pesticides from foods because it provides acceptable recovery over a wide range of polarity. Prior to GC analysis of the extracts ...

Resource - Susan Gilbert - 18th Apr 2011 - 0 comments

Direct Thermal Analysis of Solids – A Fast Method for the Determination of Halogenated Phenols and Anisoles in Cork

Off-flavours in solid samples often cause analytical problems due to the necessity of sample pre-treatment steps such as time consuming extractions followed by reconcentration of the resulting extracts and th ...

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

Analysis of Wet Samples by Direct Thermal Desorption GC

The analysis of volatiles in solids is a common analytical problem. Examples include volatile aroma compounds in foods (coffee, tea, herbs), residual fragrances from soaps and fabric softeners on textiles, an ...

Resource - Susan Gilbert - 7th Jan 2011 - 0 comments

Analysis of Release Paper and Cured Countertop Coatings Utilizing TDS2 Thermal Extraction and Pyrolysis

Customer requested analysis of release paper, uncured product and cured countertop coatings utilizing the Gerstel TDS2 Thermal Desorption unit and pyrolysis module. Preliminary results show direct thermal ex ...

Resource - Susan Gilbert - 7th Jan 2011 - 0 comments

Automated Liner-Exchange for GC-Injectors – New Concepts for Handling Dirty Samples

Sample clean-up steps, which are needed in order to prepare for example environmental or food samples for pesticide analysis, are time-consuming and a potential source of errors. Simplification – or eliminati ...

Resource - Susan Gilbert - 6th Jan 2011 - 0 comments

Comparison of the Sensitivity of Static Headspace GC, Solid Phase Microextraction, and Direct Thermal Extraction for Analysis of Volatiles in Solid Matrices

The analysis of volatiles in solids is a common analytical problem. Examples include volatile aroma compounds in foods and plant materials (coffee, tea, and herbs), residual fragrances from soaps and fabric s ...

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

Automated Dual Cartridge Solid Phase Extraction (SPE) for the Enrichment and Clean-Up of Glyphosate, Glufosinate & Aminomethyl Phosphonic Acid (AMPA) from Water Samples

This application note describes an automated method for enrichment and clean-up of Glyphosate, glufosinate and AMPA from water samples, utilizing the Anatune TE-100 Trace Enrichment HPLC system, based upon an ...

Resource - admin - 9th Sep 2010 - 0 comments

Py-GCxGC-TOFMS: Structured Data from Structured Samples

Pyrolysis is the process of thermal degradation of a high molecular weight material in an inert atmosphere with analysis of the degradation products usually by gas chromatography. The degradation products fo ...

Resource - admin - 9th Sep 2010 - 0 comments