Low-Pressure Gradient Professional IC Option

Metrohm's 850 Professional Anion MCS Low Pressure (LP) Gradient (2.850.2210) is suitable for new method development. The use of gradient chemistry (whereby the eluent strength is increased during the run) facilitates shorter retention times for late eluting peaks.

Metrohm believes that correct selection of the column and optimum mobile phase allows most separations in a routine environment to be solved isocratically. Any gradient separation also requires an additional equilibration step at the end of the separation, where the mobile phase is returned to its original (weaker) state. The 850 Professional IC Anion MCS LP Gradient can be operated with sequential, chemical or without suppression for complete flexibility.

The low-pressure gradient unit is suitable for method development as it can be used as an eluent selector for automatic switching between three different eluents so method development can be automatically performed overnight. The 850 Professional IC instruments feature Magic Net software for automatic recognition. It also provides complete system monitoring and ensures the control cards for calibration and samples are adhered to and documented in an FDA- and GLP-compliant form.

The software can easily produce reports. One-button IC allows novice operation. The 850 Professional IC?s Icolumns provide automatic recognition of the column. They will indicate optimal eluent, flow rate and the maximum pressure to safeguard the column. The Idetector provides digital signal processing with a 0 - 15000uS/cm single range. Metrohm claims the 850 Professional IC?s suppressor provides the lowest noise of any anion suppressor on the market, with full solvent compatibility and resistance to transition metals.

There is a ten year warranty on the suppressor and three years on the instrument hardware. Typical consumable costs for an automated instrument are GBP1000 a year.

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Dimplex Delivers Low Carbon Heating At Ecobuild

Dimplex is showing a range of low carbon heating solutions at Ecobuild, designed to facilitate the specification and installation of renewable energy systems. Dimplex offers a wide range of heat pumps, covering ground, air and water source models. A new range of high efficiency air source models offers levels of efficiency comparable with ground source units, yet without the need for associated ground collectors. The range delivers CoPs in excess of 4.0 even at low ambient air temperatures and is available in a choice of five outputs from 9-40kW.

The largest in the range, the LA 40 TU, offers a flow temperature up to 58C, although optimum performance is achieved at lower flow temperatures; 3.8 at A2/W35 and 4.4 at A7/W35. Where cooling capability is also required, the LA 35 TUR+ is a 35kW reversible air source heat pump, suitable for commercial applications. Giving flow temperatures of 60C, it can also be used in reversible mode for cooling, whereby it extracts heat from the internal environment.

Waste heat collected in this way can then be used for domestic hot water, or for heating a swimming pool. New this year is Smartrad, a range of wall-mounted fan convector radiators offering a cost effective, responsive and energy efficient alternative to underfloor heating or conventional radiators for heat pump systems. Smartrad allows heat pump CoP to be optimised with water temperatures as low as 40C. The range also complements conventional boiler systems, allowing improved efficiencies due to lower water temperatures.

Dimplex's solar thermal hot water system is available in a choice of 12 pre-packaged kits, with each of the system's components carefully selected for its quality and suitability for the UK's climate. Each Dimplex 2m2 collector plate has a gross collector area of 2.15m2, which is a larger area than assumed by SAP, providing improved performance over SAP default scores and meaning that the Dimplex range can help gain extra valuable points.

A range of hot water cylinders offers energy efficiency and flexibility. Available as a solar system cylinder with supplementary heat source for times when insufficient solar thermal is available, or as a conventional electric unvented cylinder, the range features high levels of insulation for plentiful energy efficient hot water. Dimplex will be located at Stand 1845 at Ecobuild 2010.

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REHAU Products Feature In Low Carbon House

REHAU was a key partner in the opening of the first affordable, low energy, low carbon house designed for the mass market. The house has been built at South Lanarkshire College and was officially opened by John Swinney, cabinet secretary for Finance and Sustainable Growth in the Scottish parliament. Scottish Ministers hope that the house's micro-renewable and energy saving features will be used as a prototype for housing developers.

REHAU has supplied a complete range of sustainable products for the project including its Raugeo ground source energy probes, Awadukt Thermo ground air heat exchanger, underfloor heating, Everloc leak-free plumbing pipework system, Raurain rainwater harvesting system, Raupiano sound insulated waste pipe and energy efficient PVC-U windows and doors.

Martin Hitchin, chief executive of REHAU, commented: "The new house is one of the first buildings in Scotland to have achieved an A rated energy certificate yet it is at an affordable price which enables it to be rolled out by both private and social housing providers to meet the predicted demand.

"REHAU is one of the UK's leading providers of sustainable polymer products for the construction sector and in this application we have been able to demonstrate perfectly how our products can be used to meet both current and future building standards and requirements".

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