Determination of Phenoxy Acid Herbicides in Drinking Waters by HPLC and Solid Phase Extraction
作者:
J.M. Sanchis-Mallols,
S. Sagrado,
M.J. Medina-Hernández,
R.M. Villanueva Camañas,
E. Bonet-Domingo,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 1998)
卷期:
Volume 21,
issue 12
页码: 1871-1882
ISSN:1082-6076
年代: 1998
DOI:10.1080/10826079808005898
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
An HPLC procedure for determining phenoxy acid herbicides in waters is described. A LichroSpher RP select B octadecyl-silane analytical column and spectrophotometric detection at 230 nm were used. Adequate retention was achieved with a mobile phase containing MeOH/phosphate buffer 10−2M pH 2.5/PnOH (50/42/8, v/v). The herbicides were isolated from water samples by using a single solid phase extraction procedure with C18solid-phase columns. An enrichment factor of 500 is achieved. The coefficients of variation of the method were generally lower than 2.7% at 0.4 μg L−1herbicide concentration levels. Recoveries ranged between 93 and 118%. The results obtained indicate that the proposed method is well suitable for monitoring phenoxy acid herbicides in compliance with the European Community standard for drinking water.
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