Silica gels incorporating insolubilized reagents

Details Silica gels incorporating insolubilized reagents Silica gels incorporating insolubilized reagents

1981-05-26

1984-03-13

Gron, Teddy S.

Chemistry: analytical and immunological testing

Optical result

With reagent in absorbent or bibulous substrate

2524081, 422 55, 422 56, 422 57, 436527, 436 73, 436163, 436166, 436183, C09K 300, G01N 3122, G01N 2106

Patent

active

044368232

ABSTRACT:
A dried silica gel containing a reagent in insolubilized form which reagent is normally soluble, especially a dried silica gel containing an insolubilized form of a normally soluble colorimetric analytical agent and a method of preparing such dried silica gel by hydrolyzing a silane having from 1 to 4 alkoxy groups in a homogeneous phase in the presence of a reagent which is normally soluble in a solvent, recovering the resultant gel and drying the same.

REFERENCES:
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patent: 3642449 (1972-02-01), Novak et al.
patent: 3697225 (1972-10-01), Schmitt et al.
patent: 3730688 (1973-05-01), Schmitt et al.
patent: 3843325 (1974-10-01), Schmitt et al.
patent: 3904373 (1975-09-01), Harper
patent: 3966897 (1976-06-01), Renn et al.
patent: 4022578 (1977-05-01), Kretschmer
patent: 4203952 (1980-05-01), Hancock et al.
patent: 4301027 (1981-11-01), Blumcke et al.
Patterson, G. D., et al., Anal. Chem., vol. 24, No. 10, pp. 1586-1590, (1952).
Harper, C. B., Anal. Chem., vol. 47, No. 2, pp. 348-351, (1975).

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