16-11-2010

In recent years water-soluble polymers are gaining more and more interest in different applications. The molecular weight distribution of polymers is usually characterized by size exclusion chromatography (SEC) coupled with refractive index, viscometric or laser light scattering detection. ...

more

10-09-2010

#img6125# Introduction: The use of nanoparticles in consumer products shows a tremendous increase over the past years. A study of the Woodrow Wilson International Centre for Scholars¹ reported that between 2005 and today the number of products based on nanoparticles increased almost ...

more

Online process for soft water control

27-11-2007

For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic characteristics of the softening plant in ...

more

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 ...

more

10-03-2005

The ESI-TOF mass spectrometers micrOTOF and micrOTOF focus do not only provide accurate mass measurements but additionally describe the True Isotopic Pattern TIPTM. For molecular formula generation this unique combination significantly reduces the number of possible formula candidates and the ...

more