Electrochemical Determination of 2-Nitrophenol in Water Samples Using Mg-Al-SDS Hydrotalcite-Like Clay Modified Glassy Carbon Electrode

✍ Scribed by Huanshun Yin; Yunlei Zhou; Shiyun Ai; Lin Cui; Lusheng Zhu

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 164 KB
• Volume: 22
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.200900522

✦ Synopsis

Abstract

A glassy carbon electrode (GCE) modified with Mg‐Al‐SDS hydrotalcite‐like clay (SDS‐HTLC) was used for the sensitive voltammetric determination of 2‐nitrophenol (2‐NP) utilizing the oxidation process. The results indicate the prepared modified electrode has an excellent electrocatalytic activity toward 2‐NP oxidation, lowering the oxidation overpotential and increasing the oxidation current. Under optimal conditions, the oxidation current was proportional to 2‐NP concentration in the range from 1.0×10^−6^ to 6.0×10^−4^ M with the detection limit of 5.0×10^−7^ M by DPV (S/N=3). The fabricated electrode was applied for 2‐NP determination in water samples and the recovery for these samples was from 95.6 to 103.5%.