A nanoporous MgO based nonenzymatic electrochemical sensor for rapid screening of hydrogen peroxide in milk. Issue 105 (13th October 2015)

• Record Type: Journal Article
• Authors: Dong, Xiu-xiu; Li, Mei-ying; Feng, Nan-nan; Sun, Yuan-ming; Yang, Chi; Xu, Zhen-lin
• Is Part Of: RSC advances. Volume 5:Issue 105(2015)
• Page Start: 86485
• Page End: 86489
• Publication Date: 2015-10-13
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra18560b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : In this work, a nonenzymatic electrochemical sensor based on nanoporous magnesium oxide (MgO) was developed for the rapid screening of hydrogen peroxide (H2 O2 ) in milk. Abstract : In this work, a nonenzymatic electrochemical sensor based on nanoporous magnesium oxide (MgO) was developed for the rapid screening of hydrogen peroxide (H2 O2 ) in milk. The nanoporous MgO, which was synthesized by a novel one-pot reaction process at low temperature, showed a large specific surface area and was favorable for constructing biosensors. Based on the nanoporous MgO, a nano-sensor for H2 O2 was developed. The sensor exhibited extremely high electrocatalytic activity toward the oxidation of H2 O2 with a detection limit of 3.3 μM and a wide linear range from 0.05 to 0.2 and 0.2 to 10 mM. The averaged recovery was determined to be from 94.3% to 119% for spiked milk samples. The proposed method is ideally suited for the fast screening of H2 O2 misuse in milk at low cost.