Fiber optic chemical sensors incorporating electrostatic couplin

Details Fiber optic chemical sensors incorporating electrostatic couplin Fiber optic chemical sensors incorporating electrostatic couplin

1989-03-15

1992-03-17

Johnston, Jill A.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

128634, 356 39, 356412, 385 12, 422 8206, 422 8211, 427163, 436 68, 436166, G01N 2164, B05D 506

Patent

active

050966715

ABSTRACT:
Fiber optic chemical sensors and materials suitable for use in making same are provided. A charged hydrogel matrix membrane is suitable for affixing to the distal end portion and the like of an optical fiber waveguide, which charged hydrogel matrix has dispersed therewithin an oppositely charged ion exchange resin powder, which ion exchange powder has a colorimetric indicator component electrostatically coupled thereto, which colorimetric indicator component has the same charge as the charged hydrogel.

REFERENCES:
patent: 4999306 (1991-04-01), Yafuso et al.

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