Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Fast Detection of Bismerthiazol in Cabbage Based on Fluorescence Quenching of Protein-Capping Gold Nanoclusters
Yuliang CHENGYao ZHANGRenjun PEIYunfei XIEWeirong YAOYahui GUOHe QIAN
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2018 Volume 34 Issue 4 Pages 415-419

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Abstract

In this work, bismerthiazol was firstly assayed by a fast and portable method employing protein-capping gold nanoculsters as probes. The luminescent intensity of the nanoclusters showed a correlative response towards bismerthiazol from 5 to 4000 μg/mL with a linear relation in the range of 5 – 100 μg/mL. As little as 5 μg/mL of bismerthiazol could be quantified. The high affinity of bismerthiazol to interact with the soybean protein-capped gold nanoclusters contributed to the excellent selectivity of this method over other common pesticides. The recoveries in several cabbage samples were 101 – 135%, indicating good performance in practical applications. By comparison to previous reported approaches, this method bears advantages including simple operation, fast response, visual readout and good selectivity.

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© 2018 by The Japan Society for Analytical Chemistry
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