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A new fluorescence probing strategy for the detection of parathion-methyl based on N-doped carbon dots and methyl parathion hydrolase 被引量:3
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作者 Wei Song Hai-Juan Zhang +2 位作者 Ying-Hua Liu Cui-Ling Ren Hong-Li Chen 《Chinese Chemical Letters》 SCIE CAS CSCD 2017年第8期1675-1680,共6页
A new facile fluorescence probing strategy, which was based on N-doped carbon dots(NCDs) and methyl parathion hydrolase(MPH), was developed for the determination of parathion-methyl(PM). The fluorescence intensi... A new facile fluorescence probing strategy, which was based on N-doped carbon dots(NCDs) and methyl parathion hydrolase(MPH), was developed for the determination of parathion-methyl(PM). The fluorescence intensity of NCDs-MPH system was proportional to PM concentration in the range of 2.38–73.78 mmol/L, with a detection limit of 0.338 mmol/L. Moreover, the present simple and facile method could be used to determine methyl parathion in environmental and agricultural samples successfully.Furthermore, the detection mechanism of this system is inner filter effect and molecular interactions between NCDs and p-nitrophenol, which is the hydrolysis product of PM catalyzed by methyl parathion hydrolase. 展开更多
关键词 N-doped carbon dots Parathion-methyl Methyl parathion hydrolase Inner filter effect fluorescence
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