Silica gels incorporating insolubilized reagents

Details Silica gels incorporating insolubilized reagents Silica gels incorporating insolubilized reagents

1979-07-03

1981-11-17

Gron, Teddy S.

Compositions

Nonreactive analytical, testing, or indicating compositions

23230R, 23230B, 422 55, 422 56, 422 57, C09K 300, G01N 2106, G01N 3122, G01N 2108

Patent

active

043010270

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:
patent: 2929829 (1960-03-01), Morehouse
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: 4022578 (1977-05-01), Kretschmer
patent: 4203952 (1980-05-01), Hancock et al.
Patterson, G. D., et al.; Anal. Chem., vol. 24, No. 10, pp. 1586-1590 (1952).
Harper, G. B., Anal. Chem., vol. 47, No. 2, pp. 348-351 (1975).

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