Protein concentration assay method including pH measurement

Patent metadata

Field	Value
Publication number	US-9523643-B2
Application number	US-201213652292-A
Country	US
Kind code	B2
Filing date	Oct 15, 2012
Priority date	Oct 17, 2011
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

Provided is a protein concentration assay method that uses a protein indicating reagent and that enables highly accurate assay. The protein concentration assay method includes: optically analyzing a color exhibited after a sample to be assayed and a protein indicating reagent are brought into contact with each other; measuring pH of the sample to be assayed; and assaying a concentration of protein in the sample based on the result of the optical analysis, the measured value of pH, and data for protein concentration assay, wherein the protein indicating reagent is a protein indicating reagent whose color varies with pH and a concentration of protein, and the data for protein concentration assay include information indicating a way to assay the result of the optical analysis corresponding to the measured value of pH.

First claim

What is claimed is:

1. A protein concentration assay method for assaying a concentration of protein in a sample, the method comprising:
optically analyzing a color exhibited after the sample and a protein indicating reagent are brought into contact with each other in presence of a buffer to obtain an optically analyzed result;
measuring pH of the sample using the same buffer as the buffer in which the protein indicating reagent and the sample are brought into contact;
obtainin…

Assignees

• Arkray Inc

Inventors

• Majima Satoshi
• Nakajima Shinya

Classifications

• G01N33/52

  Physics · mapped topic

• G01N21/80 Primary

  Physics · mapped topic

• G01N33/6839

  Physics · mapped topic