US 12,292,405 B2
Electrochemical sensor for analysis of beverages
Stanley Zhen-Jin Teo, Victoria (AU); Peter Michael Newman, Victoria (AU); Ronald Christopher Chatelier, Rowville (AU); Luke Robert Cossins, Victoria (AU); and Alastair M. Hodges, Victoria (AU)
Assigned to Universal Biosensors Pty Ltd
Appl. No. 17/765,434
Filed by Universal Biosensors Pty Ltd, Rowville (AU)
PCT Filed Sep. 30, 2020, PCT No. PCT/IB2020/000827
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2021/064466, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/908,561, filed on Sep. 30, 2019.
Prior Publication US 2022/0365023 A1, Nov. 17, 2022
Int. Cl. G01N 27/413 (2006.01); G01N 27/30 (2006.01); G01N 27/327 (2006.01); G01N 33/00 (2006.01); G01N 33/14 (2006.01)
CPC G01N 27/413 (2013.01) [G01N 27/302 (2013.01); G01N 27/3277 (2013.01); G01N 33/0042 (2013.01); G01N 33/0047 (2013.01); G01N 33/14 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sensor for assessing an analyte of interest in a liquid beverage sample, wherein the sensor comprises a first electrode, an opposing surface to the first electrode, and a second electrode, wherein the opposing surface can comprise the second electrode or be a plain opposing surface, wherein the first electrode is coated with a reagent which includes an electroactive species and the opposing surface is coated with a pH modifying reagent capable of adjusting the pH of the liquid sample to be suitable for assaying the analyte of interest, wherein the pH modifying reagent comprises a mixture of citraconic acid and oxalic acid, wherein the sensor is configured to detect a redox reaction in the presence of the liquid beverage sample.