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Citation: AN Xiao-Gang, DU Jie, QI Wei-Nan, LIU Lu, LI Xiao-Yan, GAN Hai-Ling, LU Xiao-Quan. Highly Sensitive Detection of Spermine Based on Fluorescence Quenching of Gold Nanoclusters[J]. Chinese Journal of Analytical Chemistry, ;2017, 45(8): 1209-1214. doi: 10.11895/j.issn.0253-3820.160865 shu

Highly Sensitive Detection of Spermine Based on Fluorescence Quenching of Gold Nanoclusters

AN Xiao-Gang ^1, ,
DU Jie ^1,2 ,
QI Wei-Nan ¹ ,
LIU Lu ¹ ,
LI Xiao-Yan ¹ ,
GAN Hai-Ling ¹ ,
LU Xiao-Quan ²

1.
ollege of life science, Northwest Normal University, Lanzhou 730070, China;2 Key Laboratory of Bioelectrochemistry & Environmental analysis of Gansu Province, Lanzhou 730070, China

Received Date: 27 November 2016
Revised Date: 14 June 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (Nos.21165015,21565020)

A new type of fluorescent gold nanoclusters (MU-Au NCs) was prepared by hydrothermal synthesis method using ammonium benzoate murexide (MU) as reducing agent and protecting agent. The synthesis method was simple and rapid. Based on the fluorescence quenching ability of spermine, a "turn off" type fluorescence analysis method was established for rapid and ultra sensitive detection of spermine. The linear range for detection of spermine was 0.003-300 μmol/L and the detection limit was 1 nmol/L (S/N=3). The established analytical method of spermine provided theoretical basis and reference for construction of spermine biosensor and actual sample detection.
- Murexide,
- Gold nanoclusters,
- Fluorescence probe,
- Spermine,
- Biogenic amines
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