A New Extraction Spectrophotometric Method for the Determination of Phenol in Water
A New Extraction Spectrophotometric Method for the Determination of Phenol in Water作者机构:Jilin Univ Dept Environm Sci Changchun 130023 Peoples R China Baicheng Normal Coll Baicheng 137000 Peoples R China Petrochem Ind Bur Jilin Prov Changchun 130022 Peoples R China
出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))
年 卷 期:2000年第16卷第1期
页 面:5-9页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
主 题:Phenol Extraction Spectrophotometry Water
摘 要:The product of the reaction among phenol, sodium nitroprusside and hydroxylamine hydrochloride in an alkaline solution can be extracted by chloroform in the presence of cetylpyridinium bromide(CPB), on the basis of which a new extraction spectrophotometric method for the determination of phenol in water is developed. The optimum determination wavelength is 720 nm. The molar absorptivity is 1. 05 × 10~5 mol^(-1)· L· cm^(-1) and the detection limit is 4. 0 μg/L. For 30. 0 and 60. 0 μg/L standard solutions, the relative standard deviations are 4. 5% and 2.2 %, respectively(n=6). F values of the statistical analysis show that there is no notable difference between the proposed method and 4-AAP method. The results of the standard addition method for the natural water samples are satisfactory.