Abstract: Manganese dioxide nanoparticles (MnO2 NPs) reveal excellent mimetic enzyme performances,and can efficiently catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) to generate an obvious blue change.However,the addition of glutathione (GSH) can induce the decomposition of MnO2 and thus inhibit the color reaction based on MnO2.Therefore,MnO2 NPs are synthesized and a colorimetry method for GSH determination is established.It is turned out that under the optimal conditions,the linear range of glutathione is 8-70 μmol·L-1 with a good selectivity.
李玲芳, 尹俊霞, 贾桥, 马翔, 王琦. 二氧化锰纳米颗粒比色法测定谷胱甘肽[J]. 现代化工, 2020, 40(8): 218-220,226.
LI Ling-fang, YIN Jun-xia, JIA Qiao, MA Xiang, WANG Qi. Determination of glutathione by manganese dioxide nanoparticles based colorimetry. Modern Chemical Industry, 2020, 40(8): 218-220,226.
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