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4 Current white paper about the topic waterrss
One of the most widely used water-soluble polymers is Polyvinylpyrrolidone (PVP). For more than 70 years it is applied in a variety of applications in medicine, pharmacy, cosmetics and industrial production. PVP binds to polar molecules exceptionally well. It supports the solubility of tablets in water, makes the glue stick adhesive and plays an essential role in the production of membranes. In ceramic, paper and dye applications, it produces visual effects such as gloss and brilliancy. As a food additive, PVP is a stabilizer (E1201). A characteristic feature of a certain polymer is its molecular weight distribution curve, which is usually obtained by SEC Analysis...
The use of nanoparticles in consumer products shows a tremendous increase over the past years. A study of the Woodrow Wilson International Centre for Scholars reported that between 2005 and today the number of products based on nanoparticles increased almost twentyfold from 54 to 1015. As active compounds these products contain ZnO for surface protection, TiO2 for sun screen or Ag for anti-bacterial purposes, only to name a few applications. Furthermore, Si, C and Au are frequently used. So far, no data are available concerning the release and the behaviour of nanoparticles during the spray process. Therefore, in spite of their beneficial properties, possible risks for humans and the environment need to be thoroughly investigated. Especially the exposure pathway via the lung seems to be very critical, as could be shown in a study recently published in the Journal of Nanoparticle Research...
Online process for soft water control
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 operation....
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 elemental composition of compounds with molecular weights far higher than 500 Da can unequivocally be determined...