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24 ANALYTICAL AND LABORATORY EQUIPMENT


The graph shows the behaviour of a product that was first heated up and then cooled down slowly in a laboratory reactor


the product. Interpreting the required motor power of the stirrer (motor) as a viscosity change can make visible how the product reacts on, for example, the heating or cooling rate.


When looking at highly


viscous products such as ointments or colloids (gels), vacuum is a ‘must-have’. It turns out to be a very difficult and time-intensive task to remove air bubbles from the product. Using vacuum and sometimes slow stirring during the production


and/or after, allows minimising, or sometimes even avoiding, the effect of air in the product. Besides all the above- mentioned properties of a lab reactor, further requirements are needed for different types of applications. Tese include pH measurement and flexibility of a reactor to attach other accessories (reflux coolers, dosing devices, etc.). Tere is a huge amount of possible requirements, and that is why IKA’s reactors are equipped with standard fittings NS 29 and


NS 18 – so they can be fitted to almost any application. All measurement data can be collected with the Labworldsoft software, which allows the controlling of the reactor system along with storing, displaying and exporting to programs such as Microsoft Excel. Flexibility is non-negotiable


today. Users expect their machines to be able to adapt to the fast-changing requirements of product developments. Tese reactor systems are designed to provide that flexibility.


Growing microalgae MADE easy T


he new and fully autonomous photo bioreactor Algaemaster 10 control from IKA is an ideal device for supporting scientists in re-creating the ideal environmental conditions for growing phototrophic organisms such as microalgae. Microalgae are naturally designed to


resist several environmental aggressions. For instance, they produce several metabolites to protect themselves from exterior threats. Cosmetologists have long exploited these


www.scientistlive.com


benefits in cosmetic formulations. The fully jacketed 10 l system is ocean


water resistant; its lid and vessel are completely autoclavable, ensuring sterility. To minimise unintended reactions from metal or plastic parts that might release stray


molecules into the water samples, the machine uses entirely ‘inert’ materials. The Algaemaster


10 control enables researchers to grow algae in larger quantities, under better controlled conditions and faster than previously allowed methods.


Kai-Oliver Linde is with IKA Werke. www.ika.com


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