27-08-2010

When determining particle sizes a wide variety of techniques are used in which sieving may be the most popular. Sieving is a relatively simple technique, despite the fact that of course different instrumental approaches can be used. The main advantages of sieving are the low price of the ...

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20-11-2009

Water is the number one enemy of any structure, especially those made from concrete, natural stone or masonry. Penetrating water repellents have been a mainstay of the protective coating and sealing market for years due to their ability to protect the aesthetic properties of structures and ...

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29-06-2007

Application 1 Fast method development and upscaling shown by the example of a root extrakt. Rotor volume 200 ml, flow rate: 10 ml/min, detection UV 254 nm, solvent system: hexane-ethylacetate-methanol-water Fig. 1Fig. 2 Fig. 3 Fig. 4 The analytical HPLC chromatogram (Fig.1) shows the ...

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27-01-2005

Microwave-assisted organic synthesis (MAOS) has become an increasingly popular discipline in modern chemical method development. This means that a modern, "dedicated" microwave reactor must provide also stirring, temperature measurement and pressure sensing. In the last decade, demands from ...

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