Search: Anatune Ltd, Application Note

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Automating DNPH Derivatisation for Aldehyde and Ketone Analysis

Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form derivatives in the form of hydrazo ...

Resource - Susan Gilbert - 24th Jan 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

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

The Use of the Teledyne Tekmar HT3 for Analysing Selected Residual Solvents in Pharmaceutical Products and Ingredients

Many different solvents are used in the manufacture of pharmaceutical products. To protect the health of the patient, the International Conference on Harmonization (ICH) has published guidelines on the classi ...

Resource - admin - 19th Dec 2011 - 0 comments

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

Automating the Analysis of Androstenedione and Testosterone in Serum using a GERSTEL Multi Purpose Sampler Coupled to Liquid Chromatography Tandem Mass Spectrometry Detection

The measurement of testosterone and androstenedione in females may be performed for a variety of reasons. Clinically, patients with androgen excess may present varying degrees of virilisation ranging from mi ...

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

The Automated Sample Preparation and Analysis of a Pharmaceutical Cream using the Focus Sample Processing Robot

The extraction of active ingredients from pharmaceutical products, especially creams, can often be a long and tedious process involving many steps and using strongly acidic and basic reagents. An automated e ...

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

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

The Focus Robotic Sample Processor as a Tool for the Multiple Analysis of Samples using Complementary Techniques

The Focus is a multifunctional instrument and can be used for the automated preparation and injection of samples using many techniques, for example SPME, headspace, liquid-liquid extraction, thermal desorptio ...

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

The On-line VOC Analysis of Industrial Effluents using Ambient Headspace

In a world of ever lowering detection limits and stringent relative standard deviations (RSDs) it is often easy to forget that for some analyses these are not necessary. In the case of monitoring industrial ...

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