Competitive protein binding assay using an organosilane-silica g

Details Competitive protein binding assay using an organosilane-silica g Competitive protein binding assay using an organosilane-silica g

1982-05-17

1984-06-26

Padgett, Benjamin R.

Chemistry: analytical and immunological testing

Thyroid hormone tests

436504, 436505, 436541, 436542, 436804, 436824, G01N 3358, G01N 3360, G01N 3374, G01N 3378

Patent

active

044566891

ABSTRACT:
An improved competitive protein binding assay comprising; incubating an analyte in the presence of labeled analyte and a protein binder suitable for competitive binding activity by the analyte and the labeled analyte to provide a mixture having free analyte, free labeled analyte, bound analyte and bound labeled analyte, substantially separating the bound analyte and the bound labeled analyte from the free analyte and free labeled analyte to form a first fraction containing substantially the bound analyte and the bound labeled analyte and a second fraction containing substantially the free analyte and the free labeled analyte by causing a predetermined level of the mixture to flow through a bed of an organo-silane coupled to silica gel, and detecting the labeled analyte of at least one of the first and second fractions to determine the concentration of the analyte by comparison to a reference.

REFERENCES:
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Tabor, M. W. et al., Int. J. Envir. Analyt. Chem., vol. 8, pp. 197-215 (1980).
Hsiung, H. M. et al., Clinical Biochemistry, vol. 11 (2), pp. 54-56 (1978) Abstract.

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