Electrocatalytic detection of phenolic estrogenic compounds at NiTPPS|carbon nanotube composite electrodes | Macquarie University ResearchOnline

Home

List Of Titles

Electrocatalytic detection of phenolic estrogenic compounds at NiTPPS|carbon nanotube composite electrodes

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/130676

36 Visitors

38 Hits

0 Downloads

Title: Electrocatalytic detection of phenolic estrogenic compounds at NiTPPS|carbon nanotube composite electrodes
Related: Analytica chimica acta, Vol. 689, Issue 2, (2011), p.212-218
DOI: 10.1016/j.aca.2011.01.037
Publisher: Elsevier
Date: 2011
FoR/RFCD Code(s): 030100 Analytical Chemistry
Author/Creator: Liu, Xiaoqiang
Author/Creator: Feng, Heqing
Author/Creator: Liu, Xiuhua
Author/Creator: Wong, Danny K. Y
Description: A Ni(II)tetrakis(4-sulfonatophenyl) porphyrin (NiTPPS)|carbon nanotube composite electrode that shows strong catalytic and antifouling capability was developed to detect a series of phenolic endocrine compounds including bisphenol A, nonylphenol and ethynylestradiol. This electrode was fabricated by electropolymerizing NiTPPS complexes on a carbon nanotube-modified glassy carbon electrode. Optimized experimental parameters including a hydrodynamic potential of 0.7 V for flow injection analysis (FIA) and a NiTPPS surface coverage of 2.2 nmol cm⁻² (standard deviation 0.2 nmol cm⁻²; n = 6) were obtained for detection of the endocrine disrupting compounds. The sensor responded well to all the tested compounds with limits of detection ranging from 15 nmol L⁻¹ to 260 nmol L⁻¹ (based on three times S/N ratio) under FIA conditions. Both carbon nanotubes and NiTPPS account for the excellent performance of the composite modified electrode.
Description: 7 page(s)
Subject Keyword: 030100 Analytical Chemistry
Subject Keyword: electrochemical detection
Subject Keyword: endocrine disrupting compounds
Subject Keyword: carbon nanotubes
Subject Keyword: Ni(II)tetrakis(4-sulfonatophenyl) porphyrin
Subject Keyword: electrochemical impedance spectroscopy
Subject Keyword: flow injection analysis
Resource Type: journal article
Organisation: Macquarie University. Dept. of Chemistry and Biomolecular Sciences

Identifier: http://hdl.handle.net/1959.14/130676
Identifier: ISSN:0003-2670
Identifier: mq-rm-2010004692
Language: eng
Reviewed

Macquarie University ResearchOnline

Search

Browse

Highlights

Resources