The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 07, 1980

Filed:

Jun. 20, 1978
Applicant:
Inventors:

Katsuhiro Ogasa, Yokohama, JP;

Morio Kuboyama, Tokyo, JP;

Minoru Saito, Komae, JP;

Tsutomu Kudo, Kawasaki, JP;

Yoshitsugu Harada, Yokohama, JP;

Akio Kawashiri, Fujimi, JP;

Eiji Takahashi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
424 12 ; 2323 / ; 260-8 ; 2601 / ; 2601 / ; 260121 ; 424-8 ; 424 78 ;
Abstract

Latex reagents for quantitative assay of a variety of steroid hormones or metabolites thereof which are contained in body fluid or excreted fluid of human beings comprise latex particles which are immunologically sensitized with a conjugate selected from a variety of steroid-serum albumin conjugates in which the steroid to be detected is bonded to serum albumin in a very small ratio ranging from 0.5 to 7 molecules per 1 molecule of the serum albumin used. Sensitization of latex particles with such a conjugate is performed using a limited amount dependent on the bonding ratio of steroid molecules per molecule of serum albumin in the conjugate and the particle size of the latex used. The latex reagents show very high sensitivity amounting to 0.2-0.04 nmole steroid equivalent/ml.


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