Method of determining the amount of the substances or ions conta

Details Method of determining the amount of the substances or ions conta Method of determining the amount of the substances or ions conta

1989-09-08

1991-09-17

Harvey, Jack B.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

324439, 73 2406, 310311, G01N 27414, H01L 4100

Patent

active

050498088

ABSTRACT:
A method of determining the amount of the substances or ions contained in an ionic solution or a non-deionized solution by measuring the frequency of a one side barrier-covered crystal oscillator comprising a crystal oscillator, a barrier to cover over one of the electrodes of the crystal oscillator through a predetermined insulative space so as to prevent the ionic solution or the non-deionized solution from permeating therethrough and an adsorption film cast on the other electrode of the crystal oscillator, in situ in the state that the one side barrier-covered crystal oscillator is dipped in the ionic solution or the non-deionized solution, and the one side barrier-covered crystal oscillator used therefor.

REFERENCES:
patent: 3266291 (1966-08-01), King, Jr.
patent: 4789804 (1988-12-01), Karube
Muramatsu, Hiroshi et al., "Piezoelectric Crystal Biosensor . . . Immunoglobulins", Analytical Chemistry, vol. 59, No. 23, Dec. 1, 1987, pp. 2760-2763.
Muramatsu, H. et al., "Determination of Microbes and Immunoglobulins Using a Piezoelectric Biosensor", Journal of Membrane Science, 41, 12 (1989), pp. 281-290.
"Behavior of Piezoelectric Quartz Crystal in an Aqueous Solution . . . of Minute Amount of Cyanide", The Chemical Society of Japan, No. 10, 1980, pp. 1621-1625 (Summary in English on p. 1625).

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