Osmotic method for determining the molecular weight of...

Details Osmotic method for determining the molecular weight of... Osmotic method for determining the molecular weight of...

G - Physics

01

N

G01N 13/04 (2006.01) G01N 11/08 (2006.01) G01N 30/62 (2006.01) G01N 30/02 (2006.01) G01N 30/32 (2006.01) G01N 33/44 (2006.01)

Patent

CA 2065322

2065322 9103722 PCTABS00003 A method and an apparatus for determining the molecular weight by osmometry in which a fluid circuit is used having two pressure measurement zones (26, 30). One (26) of which is responsive only to viscosity effects and the other (30) being responsive to both viscosity and osmotic effects. The osmotic effects are caused by cross-linked polymeric material (36) capable of expanding and contracting in response to the presence of a solvent (14) and solute, respectively, thereby changing the effective radius of the zone and, thereby, the pressure.

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