Chemical sensors

Details Chemical sensors Chemical sensors

1992-04-13

1994-05-03

Johnston, Jill A.

Chemistry: analytical and immunological testing

Determination of water

422 8206, 422 8207, 422 8208, 422 8211, 427 2, 436 41, 436111, 436113, 436134, 436142, 436166, 436172, G01N 2100

Patent

active

053087712

ABSTRACT:
A device for detecting the presence or concentration of an analyte, a method of making the device, and a method of detecting the presence or concentration of an analyte. The invention features one or more supports, such as beads, which carry a thin film of polymer substrate. The polymer substrate has a sensing reagent and a porous matrix. The sensing reagent alters the optical properties of the polymer substrate in the presence of analyte.

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