以香烟过滤嘴为原料制备碳量子点应用于多巴胺的测定

彭小珊; 苏安梅; 文辉忠; 钟青梅; 陈羽烨; 王益林

doi:10.3788/fgxb20183903.0388

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以香烟过滤嘴为原料制备碳量子点应用于多巴胺的测定

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 以香烟过滤嘴为原料制备碳量子点应用于多巴胺的测定
- Preparation of Carbon Quantum Dots from Cigarette Filters for Detection of Dopamine
- 发光学报 2018年39卷第3期页码：388-393
- 作者机构：
  
  广西大学化学化工学院广西生物炼制重点实验室,广西南宁,530004
- 作者简介：
- 基金信息：
  
  广西自然科学基金（2014GXNSFAA118328）();广西生物炼制重点实验室开放基金（GXKLB-2）资助项目()
- DOI：10.3788/fgxb20183903.0388
  中图分类号： O611.4
- 纸质出版日期：2018-3-5，
  
  网络出版日期：2017-10-12，
  
  收稿日期：2017-7-24，
  
  修回日期：2017-9-28，
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彭小珊, 苏安梅, 文辉忠等. 以香烟过滤嘴为原料制备碳量子点应用于多巴胺的测定[J]. 发光学报, 2018,39(3): 388-393

PENG Xiao-shan, SU An-mei, WEN Hui-zhong etc. Preparation of Carbon Quantum Dots from Cigarette Filters for Detection of Dopamine[J]. Chinese Journal of Luminescence, 2018,39(3): 388-393
彭小珊, 苏安梅, 文辉忠等. 以香烟过滤嘴为原料制备碳量子点应用于多巴胺的测定[J]. 发光学报, 2018,39(3): 388-393 DOI： 10.3788/fgxb20183903.0388.

PENG Xiao-shan, SU An-mei, WEN Hui-zhong etc. Preparation of Carbon Quantum Dots from Cigarette Filters for Detection of Dopamine[J]. Chinese Journal of Luminescence, 2018,39(3): 388-393 DOI： 10.3788/fgxb20183903.0388.

摘要

以香烟过滤嘴为原料，采用水热法制备碳量子点；基于多巴胺能猝灭碳量子点荧光的实验现象，发展了一种以碳量子点为荧光探针、在pH=8.0的磷酸盐缓冲溶液中测定多巴胺的分析方法，并探讨了荧光猝灭机理。在选定的实验条件下，当多巴胺浓度在1.2~84.0 mol/L范围内时，荧光强度的猝灭值与浓度呈良好的线性关系，方法的检出限（3

）为0.80 mol/L。采用该方法对实际样品中的多巴胺进行测定，结果满意。

Abstract

Carbon quantum dots (CQDs) were prepared by hydrothermal treatment with cigarette filters as raw material. The results indicate that the fluorescence could be quenched by dopamine with high specificity. Based on this phenomenon

a fluorescence sensor was developed for the detection of dopamine in phosphate solutions (pH=8.0). Furthermore

the quenching mechanism of the CQDs was elucidated. The fluorescence quenching value showed linear responses with dopamine concentration ranging from 1.2 to 84.0 mol/L with the detection limit of 0.80 mol/L(3

). Satisfactory results were achieved when the method was submitted to the determination of dopamine in real samples.

关键词

碳量子点荧光猝灭测定多巴胺

Keywords

carbon quantum dotsfluorescence quenchingdetectiondopamine

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