Fiber optic potassium ion sensor

Details Fiber optic potassium ion sensor Fiber optic potassium ion sensor

1992-07-22

1995-10-31

Ivy, C. Warren

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524714, 524718, 524720, 549351, 549352, C08K 539, C08K 549, C07D32300, C07D32100

Patent

active

054629896

ABSTRACT:
A sensor (10) is provided for detecting the concentration of potassium ions which comprises a molecule which selectively complexes potassium ions. The molecule, e.g., 2,2-bis[3,4-(15-crown-5)-2-nitrophenylcarbamoxymethyl]tetradecanol-14, has at least one binding site and is provided with a fluorophore group, e.g., Rhodamine-B, at that site. The molecule is one that expands upon complexation of potassium ions, such that the intensity of fluorescence increases. The change in fluorescent intensity is a direct measure of the concentration of potassium ions. A detector employing the sensor is also provided.

REFERENCES:
patent: 4523994 (1985-06-01), Shono et al.
patent: 4603209 (1986-07-01), Tsien et al.
patent: 5049373 (1991-09-01), Tsien et al.
patent: 5162525 (1992-11-01), Masilamani et al.

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