Determination of Streptomycin Residue in Cucumber by Using CdTe Quantum Dots as Fluorescence Probes

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Determination of Streptomycin Residue in Cucumber by Using CdTe Quantum Dots as Fluorescence Probes

更新时间：2023-05-18

- Determination of Streptomycin Residue in Cucumber by Using CdTe Quantum Dots as Fluorescence Probes
- Vol. 34, Issue 4, Pages: 463-467(2015)
- 作者机构：
  
  1. 湖南科技大学化学化工学院
  2. 理论有机化学与功能分子教育部重点实验室
  3. 分子构效关系湖南省普通高等学校重点实验室
- 作者简介：
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Determination of Streptomycin Residue in Cucumber by Using CdTe Quantum Dots as Fluorescence Probes. [J]. 34(4):463-467(2015)
DOI：

Determination of Streptomycin Residue in Cucumber by Using CdTe Quantum Dots as Fluorescence Probes. [J]. 34(4):463-467(2015) DOI：

摘要

基于链霉素使CdTe量子点荧光增强的特性，建立了以CdTe量子点为荧光探针检测黄瓜中链霉素残留量的新方法。研究了影响链霉素检测的因素，确定了最佳测定条件。在最佳实验条件下，链霉素的浓度在5.0×10-12~1.0×10-10 mol/L范围与体系的相对荧光强度呈线性关系，线性相关系数（r）为0.999 0，检出限达5.0×10-13 mol/L，方法的加标回收率为99%~106%。方法具有选择性高、检出限低、简单快速等优点，用于黄瓜中链霉素残留量的测定，结果令人满意。

Abstract

A novel method for the detection of streptomycin（SM） residue in cucumber was developed based on the enhancement of the fluorescence intensity of CdTe quantum dots（QDs） in the presence of SM.The factors that influence the detection of SM were investigated,and the optimum conditions were investigated.Under the optimum conditions,a good linear relationship was found between relative fluorescence intensity of the system and concentration of streptomycin in the range of 5.0×10-12-1.0×10-10 mol/L with a correlation coefficient（r） of 0.999 0.The detection limit was 5.0×10-13 mol/L,and the recoveries were between 99% and 106%.With the advantages of high selectivity,low detection limit,simpleness and speediness,the proposed method was successfully applied in the detection of trace streptomycin residue in cucumber.

关键词

链霉素抗生素残留CdTe量子点荧光探针黄瓜

Keywords

streptomycinantibiotic residuesCdTe quantum dotsfluorescence probecucumber

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