MÉTODO ANALÍTICO PARA DETERMINAÇÃO DOS CORANTES AURAMINA EM TESTES DE ECOTOXICIDADE E EM ÁGUAS SUPERFICIAIS

ANALYTICAL METHOD FOR DETERMINATION OF AURAMINE DYES IN ECOTOXICITY TESTS AND SURFACE WATERS. Dyes can be considered important environmental contaminants. Auramine dyes, known commercially as Solvent Yellow 34 and Basic 2, are used in several industrial products, including textile paper. In this study, an analytical method was developed validated using Liquid-Liquid Extraction High-Performance Liquid Chromatography coupled to Diode Array Detector (LLE HPLC-DAD) determine the exposure concentrations ecotoxicological tests with auramine increasing results reliability about hazard of these compounds. The also monitor dyes surface water samples, a region one most critical regions for contamination Brazil. showed no risk aquatic organisms considering analyzed samples. simple instrumentation selectivity, linearity (R2 > 0.99), precision (CV: 5.6-29%) accuracy (recovery: 82-90%) satisfactory two purposes Instrumental LOQ 12 µg L-1 Method ng L-1. indicated that proposed effective practical determination levels will tool verify potential future studies.