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Citation: LI Pingping, YIN Pengfei, GONG Huiping, LIU Zhengqing, WANG Xiaodan, HE Youqiu. A Study on the Interactions Between CdTe/CdS Quantum Dots with Mitomycin C and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, ;2012, 29(6): 705-710. doi: 10.3724/SP.J.1095.2012.00326 shu

A Study on the Interactions Between CdTe/CdS Quantum Dots with Mitomycin C and Its Analytical Application

1.
School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China

Corresponding author: HE Youqiu,
Received Date: 22 July 2011
Available Online: 1 September 2011
Fund Project: 西南大学发光与实时分析重庆市重点实验室资助项目(CSTC,2006CA8006) (CSTC,2006CA8006)

Tiopronin(TP) capped with CdTe/CdS quantum dots(TP-CdTe/CdS QDs) was synthesized in aqueous solution.The paper utilized ultraviolet-visible(UV-Vis) absorption spectra and fluorescence spectrometry to study the interactions between TP-CdTe/CdS QDs and mitomycin C(MMC).With the optimum reaction conditions which was found to be at pH=7.6 with tris-HCl buffer solution,the quenched fluorescence intensity of TP-CdTe/CdS QDs was linearly proportional with the concentration of MMC,correlation coefficient r=0.9991,and the detection limits were in the range of 4.7×10^-9~1.2×10^-8 g/mL,and the detection limit(3σ) for MMC was 1.4×10^-8 g/mL.The quantitative determination of MMC is quick,simple and convenient.This method has been applied to the determination of MMC in urine samples with satisfactory results.
- CdTe/CdS QDs,
- UV-Vis absorption spectra,
- fluorescence quenching method,
- mitomycin C
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