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:
Feb. 28, 2023
Filed:
Nov. 27, 2019
Board of Trustees of Michigan State University, East Lansing, MI (US);
Fraunhofer Usa, Plymouth, MI (US);
Thomas Schuelke, Pinckney, MI (US);
Cory A. Rusinek, Okemos, MI (US);
Michael Becker, East Lansing, MI (US);
Mary Ensch, Belleville, MI (US);
BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY, East Lansing, MI (US);
Fraunhofer USA, Plymouth, MI (US);
Abstract
The disclosure relates to a method for pretreating a sample for metals determination. The method includes: providing an aqueous sample mixture comprising a sample containing or suspected of containing one or more metals for detection; contacting the aqueous sample mixture with a first electrode (anode) comprising electrically conducting boron-doped diamond (BDD); electrically contacting the aqueous sample mixture with a second electrode (cathode); applying an electrical potential between the first electrode and the second electrode (i) to provide an electrical current therebetween and through the aqueous sample mixture, (ii) to generate hydroxyl ion (OH) species at the first electrode, (iii) to oxidize and free the one or more metals for detection in the sample, thereby forming a pretreated aqueous sample comprising free metal ions in aqueous solution and corresponding to the one or more metals in the original sample; and withdrawing the pretreated aqueous sample comprising the free metal ions in aqueous solution. The pretreated aqueous sample can be analyzed for metal content using any desired conventional analysis technique.