Safe & reproducible elemental analysis sample preparation

28 Sept 2006

Product news

The Oxygen Flask Combustion Unit from Exeter Analytical (UK) Ltd. is a compact and affordable system for the preparation of organic samples prior to determination of sulphur, halogen, phosphorus, boron and trace metals content by ion chromatography or titration.

The Oxygen Flask Combustion Unit (OFCU-1) provides a safe and reproducible method of igniting samples using the well-proven Schöniger flask procedure. The Schöniger flask combustion method using the OFCU-1 is capable of being used for the determination of elemental composition from percentage levels to parts per million. The OFCU-1 is able to cope with a wide range of sample types and is very simple to set up and use.

Operating inside a chamber with safety interlocks the sample is remotely ignited by means of the focused infrared heat from two tungsten-halogen lamps simply by depressing the START switch. Other useful features on the OFCU-1 include its durable, corrosion resistant aluminium interior, the thick black acrylic observation window (to ensure ignition has taken place) and safety pressure vents to release excess reaction pressure.

With a European list price of below £3000 and minimal running expenses the cost of preparing samples using the Oxygen Flask Combustion Unit is low and return on investment rapid.

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Ion ChromatographyIon chromatography, also known as ion exchange chromatography, is a high-performance liquid chromatographic technique used for the separation and identification of ions or polar molecules in a sample, including proteins, nucleotides and amino acids. Equipment includes ion exchange columns, ion exclusion columns, ion chromatography systems, pumps, and detectors. Find the best ion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.Gas Generators and AnalyzersGas generators are used for supplying or monitoring a regular flow of a high purity gas such as nitrogen, hydrogen or zero air for applications such as gas chromatography. Gas analyzers can be used in supply chain processes and laboratory experiments with portable analyzers for monitoring CO<sub>2</sub> and O<sub>2</sub> levels as well as trace gases. Regular flow can be produced with gas control modules and flow meters. Find the best gas generators and analyzers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.TitrationTitration is an analytical technique for determining substance concentration in a solution. For titration consider a manual or automated system, volumetric or coulometric reagent addition and indication by a potentiometer, spectrometer, turbidometer or by the Karl Fischer method. Other features of titration to consider include burettes, reagents, concentration range, reaction time and autosamplers.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.