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Journal of Fluorescence

, Volume 29, Issue 1, pp 137–144 | Cite as

N- and O-Doped Carbon Dots for Rapid and High-Throughput Dual Detection of Trace Amounts of Iron in Water and Organic Phases

  • Yuan He
  • Zhenzhen Feng
  • Xinjian Shi
  • Shan Li
  • Yunguo LiuEmail author
  • Guangming Zeng
  • Hua HeEmail author
ORIGINAL ARTICLE
  • 124 Downloads

Abstract

In this work, we report a dual use of highly fluorescent N- and O-doped carbon dots (CDs) for rapid and high-throughput trace analysis of iron in water and organic phases. The CDs are rapidly synthesized in a sealed vessel via microwave irradiation within 5 min, and they exhibit high quantum yields of 80% with sensitive quenching responses to iron contents. Combined with a microplate fluorescence reader, a rapid and high-throughput assay for ions is further developed. The whole process from the CD synthesis to the detection output can be accomplished within 15 min. The limits of detection for Fe3+ in aqueous solution and ferrocene in organic gasoline are determined down to 0.05 mM. Furthermore, this method has been successfully used to determine the level of irons in real gasoline for quality evaluation. The results have an excellent agreement with atomic absorption spectrophotometric measurements. The CD-based facile assay with lower cost, use of less sample, and higher-throughput holds great promise as a powerful tool for iron detection in water and organic phase samples.

Keywords

Carbon dots Fluorescence Dual use Iron detection High throughput 

Notes

Acknowledgments

This work was supported by General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China scientific research project (2017IK236), Shandong Exit&Entry Inspection and Quarantine Bureau Science and Technology Project (SK201642), and the Fundamental Research Funds for the Central Universities (18CX02126A).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Environmental Science and EngineeringHunan UniversityChangshaPeople’s Republic of China
  2. 2.Testing Institute for Chemicals & MineralsShandong Entry-Exit Inspection and Quarantine BureauQingdaoPeople’s Republic of China
  3. 3.State Key Laboratory of Heavy Oil Processing and College of Chemical EngineeringChina University of Petroleum (East China)QingdaoPeople’s Republic of China

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