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Report Demonstrates High Operational Safety and Costs Savings of Air Condenser
Asynt reports on an independent evaluation, from a leading UK university, detailing the performance of the CondenSyn MINI air condenser for safe use in their research and teaching laboratories.
Scientists worldwide are increasingly concerned about the safety, cost and indeed the environmental impact of running their laboratories. For synthetic experiments a reflux condenser is often required and is therefore an essential tool for both research and teaching chemistry. Condensers cooled by a circulating fluid such as water are effective and widely used, however they are often operated directly with tap water which creates an environmental and cost issue. The use of an Asynt CondenSyn air condenser negates the need for any recirculating coolant during standard reflux conditions.
A series of reflux experiments were undertaken using 25ml of a range of different common solvents in a
100ml 2-neck round bottom flask. Fitted to the flask were an internal thermometer and a standard 200mm long CondenSyn MINI air condenser. Reported results demonstrate minimal loss of solvent ranging from water (0.025%/hour) to dichloromethane (0.85%/hour). Asynt also offer a variety of different length CondenSyn to suit larger capacity flasks.
Based upon the average consumption of water by a Liebig condenser (2 litres / minute), at a standard cost of £1.00 /m3 supplied and £1.10/m3 waste, the authors of the report show that using a single CondenSyn MINI air condenser can save £300 - £1450 / year.
Just 20cm long and fitted with either B14, B19 or B24 adapter as standard – the Condensyn MINI provides comparable vapour condensing performance to a Liebig water condenser but advantageously requires no cooling water for operation. Proven in over 1000 installations worldwide, the Asynt CondenSyn air condenser is an affordable high-surface-area air condenser which is both safe and operationally effective. The CondenSyn’s robust design uses a new borosilicate glass manufacturing technique and this, together with a proprietary multiple hyperbolic profile, ensures optimum heat removal as vapours pass along its length. CondenSyn additionally incorporates a non-roll feature to help prevent accidents if left on a lab bench. Offering clear visibility of ongoing experimental reflux, the Asynt CondenSyn is also easy to clean and maintain.
For a copy of the report please visit
http://www.asynt.com/product/asynet-condensynmini/ Ultrasonic Flow Meter for Low Flow Rates
With the development of the ES-FLOW™ Flow Meter featuring a new Ultrasonic Wave Technology, Bronkhorst High-Tech BV added a new series to their family of liquid flow meters. Bronkhorst is a pioneer in the field of micro to low flow liquid metering instruments. In addition to their series of instruments based on the thermal measuring principle, the company introduced a unique series of low-flow mass flow meters and controllers based on the Coriolis measuring principle, providing high accuracy, fast response and fluid independence. The new ES-FLOW™ Ultrasonic Flow Meter was designed to measure tiny volume flows from 4 up to 1500 ml/min with high precision, high linearity and low pressure drop, using ultrasound in a small bore tube. Liquids can be measured independent of fluid density, temperature and viscosity. Thanks to the combination of a straight sensor tube with zero dead volume the flow meter is self-draining. The orbital TIG-welding allows hygienic connections so the instrument can be used for hygienic applications. For non-hygienic applications, the flow meter can also be equipped with compression type fittings. Wetted parts are made of stainless steel, the exterior design is rated to IP67. The user interface is a capacitive touchscreen with a TFT display to operate and readout the instrument. The on-board PID controller can be used to drive a control valve or pump, enabling users to establish a complete, compact control loop.
Typical applications for the new low-flow liquid flow meters and controllers can be found in Food, Beverage & Pharma (e.g. additives, sterilisation), Medical and Chemical (e.g. catalysts, reagents) and many other markets which require precision fluid handling e.g. fuel consumption measurement and dosing of colorants or lubricants in many industries.
42828pr@reply-direct.com New Optical Oxygen Probe for Bioreactors
PreSens Precision Sensing introduces with its OXYPro an optical oxygen probe which contributes to safe and stable culture conditions, especially in bioreactors, due to its specifications. The probe, weighing only 100 g, combines a pressure resistant optical sensor and an electro-optical module. It measures dissolved and gaseous oxygen between 0 - 100% O2
, with a detection limit of 0.03% O2 standard PG 13.5 thread.
The probe, available in different lengths, is made of stainless steel and stands cleaning in place and steam sterilisation. Membrane cleaning, polarisation or replenishment of electrolyte solutions in not necessary. The used sensor caps
can easily be exchanged or varied, as there are various styles of caps (for applications which need to be in accordance to USP VI or with a fast response coating for kLa measurements, etc). As digital interface it uses RS485 (PreSens proprietary or Modbus RTU) and has a 4 – 20 mA analogue output. A serial communication protocol is offered for data exchange between OXYPro and a PC or another host unit. This low maintenance probe reduces the workload in laboratories considerably.
43492pr@reply-direct.com , and can easily be integrated in any control system due to its
42931pr@reply-direct.com
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