45 Convenient operation
Thanks to the improved liquid nitrogen duct and electronic monitoring, direct contact of the user with LN2 is virtually impossible. The new CryoMill offers a maximum of operation safety while ensuring low LN2 consumption. The operating interface has become more user-friendly; the clear structure allows for intuitive programming of grinding cycles.
The new product generation features memory for 9 Standard Operating Procedures (SOPs), allowing to carry out routine applications at the push of a button.
Inserting and releasing the grinding jar has become even easier and safer. Wide range of accessories
The screw-top grinding jars of hardened steel and stainless steel have been specifically designed for use in the CryoMill. The fact that no sample material can escape makes them particularly safe. They are available with volumes of 5 ml, 10 ml, 25 ml, 35 ml and 50 ml. For applications where steel jars cannot be used due to possible sample contamination, Retsch offers a 25 ml grinding jar of zirconium oxide and matching grinding balls.
Various adapters make the CryoMill a versatile instrument. If only very small sample amounts need to be processed, an adapter for 2 resp. 4 grinding jars of 5 ml is recommendable. It is also possible to use 2 ml reaction vials with the CryoMill thanks to another adapter which can hold up to 6 tubes.
For safe and comfortable operation of the CryoMill, the unit is equipped with an autofill system for liquid nitrogen which can be obtained with a 50 litre container (for processing approximately 20 to 30 samples). It is also possible to connect existing cryo tanks to the mill.
Summary
For tough and elastic materials as well as for samples which contain volatile components, cryogenic grinding is the only method to obtain the required analytical fineness. The Retsch CryoMill has proven to be the perfect tool for grinding temperature-sensitive materials with a glass point below room temperature. The grind sizes are significantly finer than those produced by comparative mills and have further improved with the new product generation. Especially for difficult materials such as polyethylene or leather the Retsch CryoMill is the ideal instrument for sample preparation.
More information at
www.retsch.com/cryomill
New Dimensions in Sample Preparation and Particle Analysis
Launch of a Mechanical Tablet for Routine Checks of Tablet Hardness Tester Functionality
Measuring product breaking force is a standard procedure in every tablet manufacturing facility. Like all instrumentation, regular qualification of a hardness tester is mandatory. In order to ensure that the instrument is functioning within specifications, Sotax has developed the MT, a simple device that is designed for frequent routine verifications of the functionality of tablet hardness testers between qualifications.
Supplier-independent, the MT is designed to work with all hardness testers. The tablets are engineered so that a predetermined amount of force triggers a mechanical breaking point which is recorded by the hardness tester.
MTs are manufactured at five different breaking forces with an accuracy of ±0.5 Kp or better (5 Kp, 10 Kp, 15 Kp, 20 Kp, 30 Kp). They can also verify six different physical dimensions ± 0.03mm (5mm, 10mm, 14mm, 15mm, 20mm, 30mm).
The devices are all calibrated, verified, and tested according to a strict quality process using a NIST traceable calibration instrument. A full internal test report along with a calibration certificate is provided with each MT.
MORE INFO. 133
Innovative mills, grinders and sieve shakers from RETSCH for neutral-to-analysis and reproducible preparation and characterization of solids.
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Launch of Next-Generation Capillary Electrophoresis (CE) Platform
Beckman Coulter Life Sciences offered products across a range of biotech, analytical chemistry and industrial applications at Pittcon 2013.
One example of new applications is found with the PA 800 plus next-generation capillary electrophoresis (CE) platform, which provides automated, quantitative analysis of protein purity, charge isoform distribution and glycan structure. Originally designed with biopharmaceutical analysis in mind, the system can also be used in food and beverage quality studies for monosaccharide and protein analysis, and in the quantitative characterisation of ions, organic acids and other charged or polar molecules of importance.
MORE INFO. 134
Retsch GmbH · Germany Phone: +49(0)2104/2333-100 Fax: +49(0)2104/2333-199 E-Mail:
info@retsch.com
WWW.RETSCH.COM MORE INFO. 135
pure science – no fiction
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