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:
Dec. 25, 2018

Filed:

Jun. 05, 2018
Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventors:

Abdel-Nasser M. Kawde, Dhahran, SA;

Azeem A. Rana, Dhahran, SA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/42 (2006.01); G01N 27/30 (2006.01); G01N 27/416 (2006.01); G01N 27/49 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
G01N 27/42 (2013.01); G01N 27/308 (2013.01); G01N 27/4166 (2013.01); G01N 27/49 (2013.01); G01N 33/1826 (2013.01);
Abstract

A method of determining a concentration of phenol and/or a phenol derivative in a first solution. The method includes (a) subjecting a graphite pencil electrode system comprising a graphite pencil working electrode, a counter electrode, and a reference electrode to cyclic voltammetry in a second solution such that a surface of the graphite pencil working electrode is charged by the cyclic voltammetry to form a charged surface, (b) contacting the charged surface of the graphite pencil working electrode with the first solution for sufficient time to electropolymerize the phenol and/or the phenol derivative on the charged surface in open circuit fashion, and (c) determining the concentration of the phenol and/or the phenol derivative in the first solution, wherein the amount of the electropolymerized phenol and/or the electropolymerized phenol derivative formed on the charged surface correlates with the concentration of the phenol and/or the phenol derivative in the first solution.


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