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:
Nov. 07, 1995
Filed:
May. 02, 1994
Hisao Takeda, Kenagawa, JP;
Youichi Koshiji, Kanagawa, JP;
Hidehiro Kubota, Kanagawa, JP;
Takashi Iizuka, Kanagawa, JP;
Hymo Corporation, Tokyo, JP;
Atto Corporation, Tokyo, JP;
Abstract
An electrophoresis separation layer is produced which comprises a polyacrylamide gel which remains stable even when stored for a long time and is available for analyzing substances of an extremely wide molecular weight range in electrophoresis for determining molecular weight. The electrophoresis separation layer of the present invention includes a polyacrylamide gel with an aqueous solution containing an amine of a specific pH value, an ampholyte and an acid at a specific ratio as an electrolytic solution in the gel. This separation layer can be produced by lowering the pH value of the electrolytic solution in the polyacrylamide gel to such an extent as not to cause any hydrolysis of amide while achieving a suitable potential gradient distribution in the gel during the electrophoresis.