Search: Agilent 6890N GC, Application Note

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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

Techniques for Optimizing the Analysis of Volatile Organic Compounds in Water Using Purge-and-Trap/GC/MS

The analysis of volatile organic compounds in water is normally accomplished by purge-and-trap/gas chromatography/mass spectrometry. U.S.EPA method 8260B with purge and trap sample introduction widely used f ...

Resource - Susan Gilbert - 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

Out-Gassing of Hard Disk Covers

Modern hard disks are more sensitive to chemical contaminations. Due to the higher drive operation speed, sealing materials and plastics gas out more than before. Out gassing of organic contaminations is a p ...

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

Determining Diesel and Oil Range Organics in Water Using Automated Solid Phase Extraction

Although not frequently a problem, recent incidents at sea have led to large amounts of crude oil being released and dispersed throughout the Gulf of Mexico. Originally presumed to be Louisiana Sweet Crude, ...

Resource - Susan Gilbert - 11th Jul 2011 - 0 comments

Determination of TPH in Water using SPE DEX and LVI GC FID

Within this technical note, Anatune Ltd. presents a novel approach to the analysis of TPH in water that utilises a rational combination of newly developed technology: automated SPE; rapid extract drying using ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

The Analysis of Red List OP Pesticides in Food by DMI-GC-TOF-MS

The analysis of target compounds in food substances is usually very difficult, matrices containing fats can be even trickier. The process of extraction and clean-up of the sample can lose target analytes or ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

Rapid Quantitation of VOCs in Soil & Water by HS-GC-MS

A headspace sampling (HS) method has been developed for rapid quantitation of ppb level contamination in soil and water samples that, within its 5½ minute GC runtime, facilitates determination of > 60 volatil ...

Resource - Susan Gilbert - 15th Apr 2011 - 0 comments

A Novel Extraction Procedure for Stir Bar Sorptive Extraction (SBSE): Sequential SBSE for Uniform Enrichment of Organic Pollutants in Water Samples

A novel stir bar sorptive extraction (SBSE) procedure termed sequential SBSE was developed. Compared to conventional SBSE, sequential SBSE provides more uniform enrichment over the entire polarity/volatility ...

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