Sol-gels and their use in water quality assays

Details Sol-gels and their use in water quality assays Sol-gels and their use in water quality assays

C - Chemistry, Metallurgy

12

Q

C12Q 1/28 (2006.01) G01N 33/18 (2006.01) G01N 33/535 (2006.01) G01N 33/543 (2006.01) G01N 33/552 (2006.01)

Patent

CA 2254812

First and second reactants that give a signal when mixed in the presence of an analyte in a liquid sample, are separately contained in sol-gels that release the reactants in the presence of the liquid. For example, when the first and second reactants respectively comprise an oxidant and a reductant, and the reaction provides a detectable signal, the system can be used to detect the presence of contaminants in a water sample. The sol-gel may be obtained by reaction of water with, per part by volume thereof, at least 2 parts of a metal alkoxide, and drying the resultant gel.

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