A nanoporous MgO based nonenzymatic electrochemical sensor for rapid screening of hydrogen peroxide in milk

被引：90

作者：

Dong, Xiu-xiu ^{[1
,2
]}

Li, Mei-ying ^{[1
]}

Feng, Nan-nan ^{[2
]}

Sun, Yuan-ming ^{[1
]}

Yang, Chi ^{[2
]}

Xu, Zhen-lin ^{[1
]}

机构：

[1] South China Agr Univ, Coll Food Sci, Guangdong Prov Key Lab Food Qual & Safety, Guangzhou 510642, Guangdong, Peoples R China

[2] Nantong Univ, Dept Pharm, Nantong 226001, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 105期

关键词：

NITROGEN-DOPED GRAPHENE; COLORIMETRIC DETECTION; H2O2; NANOPARTICLES; BIOSENSOR; FOOD; NANOSTRUCTURES; NANOCRYSTALS; MECHANISMS; NANOSHEETS;

D O I：

10.1039/c5ra18560b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, a nonenzymatic electrochemical sensor based on nanoporous magnesium oxide (MgO) was developed for the rapid screening of hydrogen peroxide (H2O2) 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 nanosensor for H2O2 was developed. The sensor exhibited extremely high electrocatalytic activity toward the oxidation of H2O2 with a detection limit of 3.3 mu M 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 H2O2 misuse in milk at low cost.

引用

页码：86485 / 86489

页数：5

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