Determination of 15 isomers of chlorobenzoic acid in soil samples using accelerated sample extraction followed by liquid chromatography

0373065 - MBÚ 2012 RIV NL eng J - Journal Article
Křesinová, Zdena - Muzikář, Milan - Olšovská, Jana - Cajthaml, Tomáš
Determination of 15 isomers of chlorobenzoic acid in soil samples using accelerated sample extraction followed by liquid chromatography.
Talanta. Roč. 84, č. 4 (2011), s. 1141-1147. ISSN 0039-9140. E-ISSN 1873-3573
R&D Projects: GA MŠMT 2B06156; GA ČR GA525/09/1058
Institutional research plan: CEZ:AV0Z50200510
Keywords : Chlorobenzoic acid * hplc * Accelerated solvent extraction
Subject RIV: EE - Microbiology, Virology
Impact factor: 3.794, year: 2011

A study was conducted to elaborate a fast, simple and efficient method for determination of 15 isomers chlorobenzoic acids (CBAs) in soil using HPLC-UV. Artificially contaminated soil samples were extracted using accelerated solvent extraction (ASE) with 1 percent acetic acid in a mixture of hexane and acetone (1:1, V/V) under a pressure of 10.34 MPa and temperature of 150 degrees C. The recovery of the ASE method was above 82%. The extracts were concentrated; dimethyl sulfoxide was used to prevent CBA volatilization and the final analysis was performed with a C18 XBridge HPLC column employing a mobile phase consisting of acetonitrile and 0.1percent trifluoracetic acid in water. A HPLC procedure with gradient elution and UV detection was developed and validated
Permanent Link: http://hdl.handle.net/11104/0206228