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.
Patent No.:
Date of Patent:
Jan. 22, 1985
Filed:
Nov. 15, 1982
Chizuko Nakahara, Hino, JP;
Shigenori Tanaka, Tokyo, JP;
Hiroshi Tamura, Higashiyamato, JP;
Akiyoshi Matsumoto, Hino, JP;
Seikagaku Kogyo Co., Ltd., Tokyo, JP;
Abstract
Bacterial endotoxin in an assay sample is determined by an amoebocyte lysate component of horseshoe crab in the presence or absence of a substrate for endotoxin determination by using an assay sample in the liquid state obtained by treating said assay sample with an endotoxin-free acid having a pKa.sup.25.degree. C. value of not more than 3 at a pH of not more than 3; and a kit therefor, a receptacle containing (a) an endotoxin-free acid having a pKa.sup.25.degree. C. value of not more than 3 e.g. perchloric acid, trichloroacetic acid, nitric acid, for treating the assay sample and a receptacle containing (b) an amoebocyte lysate component or horseshoe crab. The acid treatment of the assay sample results in improved accuracy, reliability and reproducibility of the bacterial endotoxin determination.