PL
Opracowano metodą oznaczania iwermektyny w surowicy i tkankach jadalnych zwierząt z zastosowaniem elektroforezy kapilarnej, którą poddano ocenie statystycznej. Proces walidacji uwzględniał następujące elementy: liniowość w zakresie od 1 do 20 µg/kg, czułość, specyficzność, dokładność i precyzję metody. Odzysk analitu w procesie ekstrakcji wynosił 80,2%. Granicę wykrywalności ustalono na 0,3 µg/kg a oznaczalności ilościowej na 1 µg/kg.
EN
In this work the capillary clectrophoretic method, with liquid-liquid extraction, for the isolation and determination of the ivermectin in animal serum and tissues is presented. Ivermectin is a drug with a broad spectrum of activity against nematodes and arthropod parasites in food-producting animals such as sheep, cattle, pigs, horses. The method was statistically validated for its linearity, accurancy, precision and selectivity. A typical standard curve encompassing a range of 1 to 20 µg/kg ivermectin was linear (correlation coefficient r=0.9992). The lowest level validated in scrum and tissue by the method was 1 µg/kg and the limit of detection was 0.3 µg/kg. The average recovery from samples was 80.72%. The inter-assay precision was expressed as the mean SD and relative standard deviation (RSD). This characteristics make this method attractive when compared to classical isolation and determination procedures for ivermectin. The analytical method was successfully applied to determination for ivermectin residue in tissues and for pharmacokinetic studies.