9 Pumps, Valves & Liquid Handling New High-Compression Turbopumps Introduced


Pfeiffer Vacuum is presenting extremely high-compression models with its new HiPace 700 H turbopumps. With a compression ratio of ≥ 2·107 for hydrogen, they are suitable for generating high and ultra high vacuum. Due to the high compression ratio, a low residual gas spectrum, which is desirable for certain mass spectrometry applications, is created in the chamber.


Due to their advanced rotor designs, HiPace 700 H turbopumps have an exceptionally high critical backing pressure capability of 22 hPa. This allows the pumps to reach ultra high vacuum, even when operating with high backing pressures that occur in combination with diaphragm pumps.


“With the new HiPace H-family, we have the ideal turbopump for research and analytics applications as well as for other industrial applications. In terms of energy efficiency as well, this product is far ahead. Due to the integrated ‘intermittent mode’ function, the HiPace H switches a connected backing pump on only if the backing pressure is no longer sufficient. This reduces the energy consumption of the entire vacuum system by up to 90%,” said Florian Henss, Product Manager at Pfeiffer Vacuum.


Due to the hybrid bearing, combining a ceramic ball bearing on the fore-vacuum side with a permanent-magnet radial bearing, these turbopumps are equipped with a particularly robust bearing concept. As a result, they have a long service life with a service interval of over four years.


48195pr@reply-direct.com Positive Pressure Manifold for SPE Offers Consistent Flow Control for Improved Results


Gilson announces the introduction of the ASPEC® Positive Pressure Manifold for solid phase extraction (SPE). The ASPEC manifold offers an initial step to SPE automation for clinical, forensic and food or beverage testing laboratories. With the ability to accommodate 96-well SPE plates, the ASPEC manifold is also an ideal choice for sample cleanup prior to LC-MS for bioanalysis.


The ASPEC Positive Pressure Manifold uses positive pressure gas to force viscous samples into SPE cartridges, unlike traditional SPE vacuum manifolds. The multiple adjustable flow rates improve consistency among samples and recoveries, and ensures uniform flow for both low- and high-viscosity solutions.


The ASPEC Positive Pressure Manifold, with its single gas input and small footprint, incorporates easily into laboratory workflows and provides a fast and simple way to prepare several samples in parallel for later analysis by chromatography.


The universal design of the ASPEC Positive Pressure Manifold makes it compatible with popular formats, including 1, 3, and 6 mL SPE tabbed and tabless cartridges and 96-well SPE plates. When combined with Gilson’s PLATEMASTER® microplate pipetting device, the ASPEC Manifold greatly increases sample preparation throughput to meet increased testing demands in the clinical, forensic and food or beverage laboratories.


For more information visit www.gilson.com. 45813pr@reply-direct.com ADVERTORIAL Miniature 2-way Inert Solenoid Valve for Critical Fluid Control


Innovation in miniature continues to be the mission for The Lee Company proven by their ability to develop innovative miniature precision fl uid control components. A good example of this is their new LFV Series 8000 2-way inert solenoid valve which is ideal for critical fl ow applications in clinical chemistry, fl ow cytometry and haematology machines.


These 2-way chemically inert isolation style valves represent the next generation of the classic 2-way, normally closed (NC) inert LFV valves providing an on/off function in a critical fl uidic circuit ensuring zero dead volume and extremely low internal volume. They incorporate a diaphragm seal that isolates the fl uid from the inner components to provide a consistently reliable switching performance. They are also rated for bi-directional fl ow and feature a contoured path design which allows for complete fl ushing capability.


The valves small size ensures a more compact instrument footprint


and means less fl uid is needed enabling closer valve spacing. Other key benefi ts include; long-life operation which contributes toward reduced maintenance and lower installed cost, low power consumption ensuring less heat generated and a smaller power supply. They are chemically inert, fl ushable, and critical fl uids are only in contact with the port head and diaphragm with no metallic contact.


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They are fl ow rated at 1250 Lohms maximum and pressure rated at vacuum to 30 psi and are available with push on ports for soft tubing or two manifold mount styles, which now utilise O-rings instead of gaskets made from the same material as the diaphragm.


LPD SERIES - Precision Dispense Pump


 Compact & Lightweight  Maintenance Free Design


Wide Range of Dispense Volumes Available: 50, 250, 1000 and 3000 µL  High Dispense Accuracy & Repeatability  Home sensor and encoder options available  Long Cycle Life: 10 Million (minimum)  Different Port Head Material Options: PMMA & PEEK


LFV valves are generally used in medical and scientifi c applications including in-vitro diagnostics, human genomics, biotechnology, environmental analysers and other critical OEM devices. Each valve is 100% functionally tested for performance and use materials that ensure a consistent and long-life performance.


More information online: ilmt.co/PL/EvyJ 47708pr@reply-direct.com


The Lee Company’s LPD Series Precision Dispense Pumps are step per motor driven, positive displacement pumps offering unparalleled reliability and performance. Featuring a compact, lightweight, maintenance free design, the pumps can be positioned where the fluidic requirements dictate, regardless of accessibility needs.


For more information visit www.leeproducts.co.uk Fax: 01753 889588 email: sales@leeproducts.co.uk


Lee Products Limited, 3 High Street, Chalfont St Peter, Gerrards Cross, Bucks. SL9 9QE Tel: 01753 886664


Innovation in Miniature


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