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- Title
Micelle-Mediated Extraction and Cloud Point Pre-concentration for the Spectrophotometric Determination of Phenol in Water Samples.
- Authors
Zarei, Ali Reza; Gholamian, Forouzan; Chalavi, Soheila
- Abstract
In this paper, a cloud point extraction method for the determination of trace amounts of phenol by spectrophotometry is described. The method is based on the colour reaction of phenol with diazotized p-nitroanilinean alkaline media and the cloud point extraction of azo dye product using of nonionic surfactant Triton X-114. The effects of reaction and extraction parameters were studied and optimum parameters were established. The calibration graph was linear in the range of 2.0-400 ng mL-1 of phenol. Detection limit based on three times the standard deviation of the blank (3Sb) was 1.0 ng mL-1 and the relative standard deviation (RSD) for 50 ng mL-1 of phenol was 1.73%(n=10). The proposed method was applied for the determination of phenolin water samples.
- Subjects
MICELLES synthesis; ALKALINE earth compound synthesis; SURFACE active agents; AZO dyes; STANDARD deviations
- Publication
South African Journal of Chemistry, 2011, Vol 64, p158
- ISSN
0379-4350
- Publication type
Article