Jump to main content
Jump to site search


The preparation of flexible AuNPs modified carbon cloth electrode and its application on electrochemical detection of Hg (II) by continuous flow way in environmental water

Abstract

In this article, a carbon cloth composite electrode modified by gold nanoparticles (AuNPs) was prepared by a facile in-situ electrodeposition method and applied to the detection of mercury ions in water. Under the optimized electrochemical detection conditions and methods, the limit of detection (LOD) was 0.6 ug/L with the linearity ranging from 2 to 200 ug/L under the SWSV detection method, and the electrode represented good repeatability after many cycles. Based on this detection method, a continuous flow electrochemical detection system was constructed and applied to the detection of Hg ions in environmental water samples. The standard addition experimental results of two real water samples with addition level of 10 and 50 ug/L showed that the recoveries were between 92.4 % and 108.9 % with the RSDs form 2.01% to 3.22%. These results achieved the same performance as that of ZAAS mercury detection method (Recovery: 94-102.4%, RSD 2.09-5.4%). Compared with other electrode materials, shorter detection time, wider linear range and high stability with the similar LOD can be achieved with continuous flow detection method by using the composite electrode. The established continuous flow electrochemical detection system would have a promising application in online and real-time detection of heavy metals in environmental water.

Back to tab navigation

Supplementary files

Publication details

The article was accepted on 01 Aug 2018 and first published on 03 Aug 2018


Article type: Paper
DOI: 10.1039/C8AN01284A
Citation: Analyst, 2018, Accepted Manuscript
  •   Request permissions

    The preparation of flexible AuNPs modified carbon cloth electrode and its application on electrochemical detection of Hg (II) by continuous flow way in environmental water

    P. Guan, G. Pengran, N. Liu, F. Zhang and Y. Lei, Analyst, 2018, Accepted Manuscript , DOI: 10.1039/C8AN01284A

Search articles by author

Spotlight

Advertisements