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LABORATORY PRODUCTS
New Benchtop Evaporator Removes Even Highest Boiling Point Solvents
Genevac has launched the EZ-2 Elite - a new addition to its popular EZ-2 evaporator range. The EZ-2 Elite is designed to remove high boiling point solvents and deliver enhanced solvent recovery thereby improving final drying of stubborn samples and enabling fast lyophilisation of HPLC fractions.
The high performance scroll pump used with the EZ-2 Elite delivers deeper vacuum than the diaphragm pumps used on other EZ-2 systems. This advance plus internal enhancements to heat vapour duct and system components enable the EZ-2 Elite to routinely evaporate challenging high boiling solvents including DMSO and NMP. In addition these enhancements ensure that such challenging solvents only condense in the SpeedTrap, and not anywhere else.
The SpeedTrap™ on the EZ-2 Elite works just like the other EZ-2 models but with the added benefit of automatic defrost and drain technology. The EZ-2 controls the SpeedTrap and the new Elite solvent collection vessel to allow mid-method defrosting and draining. This controlled draining facility enables very high levels of solvent recovery to be achieved. For example, when working with HPLC fractions, higher levels of dryness can be achieved by first draining the volatile organic solvent before tackling the water, allowing full vacuum to be used during final drying. Using the EZ-2 Elite SpeedTrap - the Genevac LyoSpeed™ method of fast lyophilisation of HPLC fractions is possible for the first time on an EZ-2 Evaporator.
Running the EZ-2 Elite is as simple as 1, 2, 3. Just load your samples, select maximum safe temperature for samples, select solvent type and hit start. Offering true unattended operation capability the EZ-2 Elite requires no user training, even a beginner can competently use the system within 5 minutes.
The EZ-2 Elite has been designed to concentrate or completely dry samples. The system will accommodate a wide selection of sample holders enabling evaporation from most common sample container formats including round-bottom flasks up to 500ml, tubes up to 160mm long, custom reaction blocks and shallow or deep-well microplates. To meet the need of the many life science companies switching their compound generation programmes from serial chemistry to parallel synthesis, the EZ-2 Elite is also able to take tubes, flasks and vials directly from the synthesis process, eliminating a manual handling step, increasing recoveries and removing the chance of cross contamination.
Circle no. 370
New Range of Filtration Products with a Vast Choice of Membrane Types and Pore Sizes
The new Sterilin range of specialist filtration products is so extensive that life scientists are sure to be able to find a syringe filter or filtration unit with a pore size and membrane type to suit almost every application.
Choosing the correct pore size to suit a specific application is an important consideration when choosing a filter. Sterilin Syringe filters are available with pore sizes of 0.22µm and 0.45µm, and Sterilin Filtration Units in pore sizes of 0.10µm, 0.22µm and 0.45µm. The smallest pore size is ideal for the reduction of Mycoplasma in samples. 0.22µm filters are appropriate for applications such as sterilisation of media and aqueous solutions, filtration of buffers, protein binding and gas filtration/air monitoring. The largest pore size is suitable for the clarification of aqueous solutions and solvents, pre-filtration, filtration of protein-free media, solvents and aggressive chemicals, and for the sterilisation/ultra-cleaning of aqueous solutions.
Sterilin Syringe Filters with a PES (polyethersulfone) membrane demonstrate faster flow rates compared to other membrane types, with low protein binding and low levels of extractables. This membrane is suitable for the pre-filtration and filtration of buffers and culture media. Additionally, Sterilin Syringe Filters are also available with a CA (cellulose acetate) membrane.
Sterilin Filtration Units are available with a choice of PES, MCE, PVDF or NY filters. Sterilin filtration products are gamma irradiated and ceritified non-pyrogenic to <0.5EU/mL to ensure that the quality of valuable samples is protected. In addition, the Syringe Filters and Filtration Units are individually wrapped to minimise the risk of contamination. For further protection against contamination, the caps supplied with the complete Filter Units are individually wrapped in order that sterility is maintained until the sample has been filtered.
The Sterilin Filtration Unit is manufactured using virgin non-toxic polystyrene for excellent clarity, with convenient moulded graduations. It has easy grip sides to improve handling and an ergonomic cap design for comfort and ease of use. It is available in a choice of volumes (150mL, 250mL, 500mL and 1L) and the 45mm screw thread is compatible with most manifolds. The Unit has been pressure tested to ensure leak-free performance.
Circle no. 371
Serological Pipettes
Manufactured from optically clear polystyrene in an ISO9001:2000 factory, the LabCo range of serological pipettes launched by Labtek will not only meet, but exceed customer expectations.
Sterilised by gamma irradiation and certified non- pyrogenic, customers can select from two packaging options: either individually wrapped or wrapped in bags of 25.
Unique colour coding for each pipette capacity and crisp black graduations provides efficient selection and ease of reading to speed up users daily routine.
Available from 1ml to 50ml, the LabCo range offers users all that they could possibly ask for.
Circle no. 372 Circle no. 373
LAB ASIA - MARCH/APRIL 2011 - LABORATORY PRODUCTS
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