New method concentrates environmental samples without losing volatile analytes
21 May 2008Product News
Genevac, world leader in solvent evaporation technologies, has developed in conjunction with several leading laboratories a new method which enables environmental samples to be concentrated to less than 1ml without losing any volatile analytes.
A series of independent technical papers demonstrating the new methodology may be downloaded via the article webpage.
It is of great benefit to concentrate samples prior to analysis to help accurately determine levels of different analytes. Over the last 15 years, to safeguard sample integrity during rapid and safe evaporation, Genevac has pioneered the development of a range of innovations including SampleGuard™ temperature control, the Dri-Pure® anti-bumping system and most recently the unique SampleGenie™ technology.
The ingenious patented design of SampleGenie™ enables Genevac's popular EZ-2 series centrifugal evaporators to accelerate the pooling of multiple large volume environmental sample fractions into a single small sample vial. This, and the advanced automation offered by the Genevac EZ-2 Series, helps users to significantly increase recovery of volatiles, improve result uniformity and increase productivity in environmental analysis.
Using the most advanced proven technology in evaporation science, the EZ-2 Series is able to evaporate solvents in typically half the time of other evaporator designs. Years of experience in solvent evaporation and sample purification have culminated in a smart sample evaporator that saves you time and delivers optimal performance and solvent recovery. Running an EZ-2 Series evaporator is as simple as 1, 2, 3. Just load your samples, select maximum safe temperature for samples, select solvent type and hit start. Requiring no peripherals for operation the compact EZ-2 fits neatly onto a laboratory bench or into a fume hood. All key components on the robust and reliable system are user serviceable further lowering the cost of ownership.
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EZ-2 Series
GenevacUsing the most advanced proven technology in evaporation science, the third generation of the EZ-2 Series has been designed specifically for solvent removal in life science research; be that concentration of samples or complete drying. The innovative design of the EZ-2 Series presents many advantages for working in parallel within synthesis chemistry, analytical sample preparation and for general-purpose solvent removal needs in life science laboratories. At the heart of the evaporator is a solvent resistant, oil-free vacuum pump, and the high efficiency, defrost-free, SpeedTrap™, which traps all solvents as liquids, even water. Solvents collect in the insulated, plastic coated glass vessel, enabling the user to see the progress of evaporation and determine when the trap should be emptied. The EZ-2 Elite has a special auto-draining collection vessel fitted to the SpeedTrap, which uses the very powerful Scroll pump. The Elite can therefore evaporate the highest boiling solvents such as DMSO and perform the Genevac LyoSpeed fast lyophilisation method for HPLC fractions. There is a low-cost option available on the Standard, Plus and Elite that allows the routine use of hydrochloric acid and aggressive solvents. By building key elements in Hastelloy®, glass or PTFE, full protection against acid chlorides is achieved. New to the HCl Resistance option is the ability to evaporate concentrated nitric acid. This option must be specified when ordering, as it cannot be retrofitted. All EZ-2 models are resistant to routine use of high concentrations of TFA as standard. An additional option is available to allow safe operation for those wishing to use highly explosive solvents, such as pentane or diethyl ether - the inert gas purge system. This system can also be used to preserve oxygen or moisture sensitive samples under an inert gas blanket until the user returns to the evaporator. The EZ-2 Series can also accommodate a wide selection of sample holders, including round-bottom flasks up to 500ml, tubes up to 160mm long (including Dionex ASE® and Radleys Carousel tubes), custom reaction blocks, and shallow or deep-well microtitre plates. EZ-2 Series Models: The Standard (EZ-2) is suitable for water and volatile solvents The Envi (EZ-2 Envi) is recommended for concentration of volatile solvents The Plus (EZ-2 Plus) is recommended for solvents with boiling points upto 165°C The Elite (EZ-2 Elite) is recommended for solvents with boiling points upto 220°C