Patents Assigned to POSTNOVA ANALYTICS GMBH
  • Apparatus for Performing a Centrifugal Field-Flow Fractionation Comprising a Seal and Method
    Publication number: 20140066280
    Abstract: The current invention relates to an apparatus for performing a centrifugal field-flow fractionation. In particular, in the apparatus according to the invention, radial rotary shaft seals are used for sealing the rotating parts of the shaft for carrying out the centrifugal field-flow fractionation and the stationary parts. Furthermore, a separate line is introduced for reducing the pressure differential across these seals. In such way, the driving force driving sample fluid across the seals is reduced, thereby reducing leakage.
    Type: Application
    Filed: May 21, 2012
    Publication date: March 6, 2014
    Applicant: POSTNOVA ANALYTICS GMBH
    Inventor: Roland Welz
  • Cell Construction For Light Scatter Detectors Having Self-Focusing Properties
    Publication number: 20110242535
    Abstract: The invention relates to a device and to a method for measuring the scattered light about molecules present in a suspension, wherein the suspension is fed through a measurement cell. The measurement cell is produced as a segment of a curved surface, particularly an ellipsoid, a hyperbolic shape, a parabolic shape, or a circle, and comprises a curved and a flat surface. Light-sensitive detectors are disposed about the curved surface and capture the scattered light.
    Type: Application
    Filed: November 19, 2009
    Publication date: October 6, 2011
    Applicant: POSTNOVA ANALYTICS GMBH
    Inventor: Diethelm Fröse