Menezes, Manoel Lima de [UNESP]Simionato, E. M. R. S.Felix, G.2014-05-202014-05-202008-01-01Journal of Liquid Chromatography & Related Technologies. Philadelphia: Taylor & Francis Inc, v. 31, n. 17, p. 2603-2611, 2008.1082-6076http://hdl.handle.net/11449/40470A new IS-anionic stationary phase was synthesized to make on-line extraction of the ochratoxin A and B from samples of beer for HPLC. The propyltriethylammonium chloride stationary phase was characterized affecting it's elementary determination and RI specter, respectively. Evaluation of the IS-anionic column for the extraction and quantification of OTA and OTB in beer has shown that the column is suitable for efficient extraction (recovery >76.5%) and precise analysis. The detection limits for OTA and OTB were 0.03 and 0.07 mu g L(-1), respectively. The range of detector linearity was 0.03 at 20 mu g L(-1).2603-2611engbeerinternal surface-anionicochratoxinstationary phaseArtigo10.1080/10826070802352827WOS:000258898600006Acesso restrito4659698040759224