期刊论文

Wang, Yong-Sheng

英文

Microchimica Acta

0026-3672

2016

183

4

1333-1339

10.1007/s00604-015-1738-7

The authors gratefully acknowledge the support of the National Natural Science Foundation of China (No. 21177052), the Science and Technology Program of Hunan Province in China (No. 2010SK3039) and the Construct Program of the Key Discipline (Public Health and Preventive Medicine) in Hunan Province.

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The authors describe a strategy for fluorometric determination of lead(II) that is based on the suppression of the surface energy transfer that occurs between acridine orange and gold nanoparticles (AuNPs). As a result, the fluorescence of the system is recovered. Under optimized conditions, the enhancement of fluorescence intensity is related to the concentration of lead(II) in the 44nM to 4.8μM range, with a detection limit of 13nM. The relative standard deviations for 11 determinations at concentrations of 0.386μM, 1.93μM and 2.89μM are ...