期刊论文

Wang, Yong-Sheng

英文

Microchimica Acta

0026-3672

2018

185

10

1-10

10.1007/s00604-018-3019-8

The authors gratefully acknowledge the support of the National Natural Science Foundation of China (No. 21177052), and the Science and Technology Program of Hunan Province in China (No. 2010SK3039). The author(s) declare that they have no competing interests.

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The authors report on a one-pot approach for synthesizing highly fluorescent protamine-stabilized gold nanoclusters. These are shown to be a viable nanoprobe for selective and sensitive fluorometric determination of lead(II) via quenching of fluorescence via Pb(II)-Au(I) interaction. Under optimized conditions, fluorescence measured at excitation/emission peaks of 300/599nm drops in the 80nM–15μM lead(II) concentration range. The detection limit is 24nM, and relative standard deviations (for n = 11) at concentrations of 0.10, 4.0 and 15μM ar...