Premium
Direct Simultaneous Determination of α‐ and β‐Naphthol Isomers at GC‐Electrode Modified with CNTs Network Joined by Pt Nanoparticles Through Derivative Voltammetry
Author(s) -
Wang XiaoGang,
Wu QingSheng,
Ding YaPing
Publication year - 2006
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200503412
Subject(s) - carbon nanotube , derivative (finance) , nanoparticle , electrode , buffer solution , pulmonary surfactant , glassy carbon , resolution (logic) , detection limit , voltammetry , chemistry , materials science , electrochemistry , analytical chemistry (journal) , cyclic voltammetry , nanotechnology , chromatography , biochemistry , artificial intelligence , economics , computer science , financial economics
The semi‐derivative technique was adopted to improve the resolution and surfactant was added to sample solution to enhance the sensitivity, α ‐ and β ‐naphthol isomers could be determined directly and simultaneously at glassy carbon electrode modified with carbon nanotubes network joined by Pt nanoparticles. In 0.1 mol L −1 HAc‐NaAc buffer solution (pH 5.8), the linear calibration ranges were 1.0×10 −6 to 8.0×10 −4 mol L −1 for both α ‐ and β ‐naphthols, with detection limits of 5.0×10 −7 for α ‐ and 6.0×10 −7 mol L −1 for β ‐naphthol. The amount of naphthol isomers in artificial wastewater has been tested with above method, and the recovery was from 98% to 103%.