title: High-performance liquid chromatographic determination of phenolic compounds in natural water coupled with on-line flow injection membrane extraction-preconcentration.
abstract: A liquid chromatographic method for determination of trace phenolic compounds has been established, coupled with an on-line supported liquid membrane extraction-preconcentration flow-injection system. Tributyl-phosphate dissolved in kerosene was used as the carrier of the supported liquid membrane. Four phenolic compounds (phenol, catechol, resorcinol and hydroquinone) were chosen as the model compounds and the experiment conditions were optimized. Under the optimum conditions, calibrations were linear in the range of 1-500 microg/L, with good correlation coefficients (r > 0.999). The total analysis time of the system was 22 min, including the membrane extraction, liquid chromatographic separation and equilibration times.
authors.affiliation: College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, PR China.
authors.forename: Ailing
authors.initials: A
authors.lastname: Sun
authors.forename: Jiao
authors.initials: J
authors.lastname: Li
authors.forename: Renmin
authors.initials: R
authors.lastname: Liu
mesh_terms: D002138:Calibration; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods; D010636:Phenols / Q000032:analysis*; D012996:Solutions / Q000737:chemistry; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D010636:Phenols; D012996:Solutions; D014874:Water Pollutants, Chemical; D014867:Water