C - Chemistry – Metallurgy – 12 – M
Patent
C - Chemistry, Metallurgy
12
M
C12M 1/40 (2006.01) C12N 11/08 (2006.01) C12Q 1/00 (2006.01) G01N 27/30 (2006.01) G01N 27/40 (2006.01)
Patent
CA 2140444
Sensor devices for detecting components in fluid samples, especially by electrolytic analytical methods, comprising a de- tecting means (usually an anode, especially one of platinum) surrounded by a selectively permeable membrane barrier composed of a mixture of polyvinyl chloride and polyaryl sulphone polymers. Preferred proportions of the polymers are 1 to 9 parts of poly- aryl sulphone for each part of polyvinyl chloride, and the mixture may be formed into membranes by solution casting. Preferably this barrier is used with an inner membrane, especially of porous polycarbonate. In use, these polymer mixtures are especially useful in their selective permeability to glucose. Also provided are methods for their use in analysis, and the polyvinyl chloride/ polyaryl sulphone polymer compositions themselves and membranes made from them.
Benmakroha Yazid M.
Christie Ian M.
Vadgama Pankaj M.
Smart & Biggar
The Victoria University Of Manchester
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