Apparatus for polyelectrolyte measurement with an ultrasonically

Details Apparatus for polyelectrolyte measurement with an ultrasonically Apparatus for polyelectrolyte measurement with an ultrasonically

1994-06-01

1996-03-26

Wieder, Kenneth A.

Electricity: measuring and testing

A material property using electrostatic phenomenon

In a liquid

324 711, 324450, 7386491, G01N 2760

Patent

active

055023894

ABSTRACT:
An apparatus for automated polyelectrolyte measurement in process materials comprises a sample vessel with an outer wall defining a cylindrical cavity and with a reservoir of larger diameter above and in communication with the cavity. A liner for the cavity and the reservoir are made of an electrically insulating material such as polytetrafluoroethylene. To clean the apparatus there is also provided an ultrasonic oscillator which is mechanically coupled to the sample vessel. In order to improve the cleaning process, the liner and preferably also the reservoir are attached to the outer wall in such a way as to resist tensile and shear forces and the ultrasonic oscillator is attached to the outer wall. Preferably, the liner is attached to the outer wall by an adhesive.

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"Analysis Instrumentation, vol. 4", Proceedings of the Twelfth Annual Analysis Instrumentation Symposium, May 11-13, 1966, Houston, Texas, pp. 181-198.

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