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:
Apr. 14, 2015

Filed:

Jul. 02, 2012
Applicants:

Tiejie Wang, Shenzhen, CN;

Yi LU, Shenzhen, CN;

Lihe Xiao, Shenzhen, CN;

Xiaoying Guan, Shenzhen, CN;

Dongqi Han, Shenzhen, CN;

Guo Yin, Shenzhen, CN;

Jue Wang, Shenzhen, CN;

Xueqing LI, Shenzhen, CN;

Yan Yan, Shenzhen, CN;

Inventors:

Tiejie Wang, Shenzhen, CN;

Yi Lu, Shenzhen, CN;

Lihe Xiao, Shenzhen, CN;

Xiaoying Guan, Shenzhen, CN;

Dongqi Han, Shenzhen, CN;

Guo Yin, Shenzhen, CN;

Jue Wang, Shenzhen, CN;

Xueqing Li, Shenzhen, CN;

Yan Yan, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/94 (2006.01); G01N 21/78 (2006.01); G01N 33/74 (2006.01); G01N 33/52 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01N 33/94 (2013.01); Y10T 436/145555 (2015.01); G01N 21/78 (2013.01); G01N 33/74 (2013.01); G01N 33/52 (2013.01);
Abstract

A method for rapidly measuring melatonin adulteration of Chinese patent medicines and healthcare foods comprises: (1) extracting melatonin added to a Chinese patent medicine or healthcare food by using ethyl acetate; and (2) adding p-dimethylaminocinnamaldehyde to the extracted solution, and observing color. The method is rapid, simple and convenient, has strong specificity, high accuracy, reaction sensitivity, and a wide application range, and is applicable to on-site detection of melatonin adulteration of a Chinese patent medicine or healthcare food.


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