@article{2005, title={Simultaneous Determination of Food Dyes by First Derivative Spectrophotometry with Sorption onto Polyurethane Foam}, author={Eliane C. VIDOTTI and Juliana C. CANCINO and Cládio C. OLIVEIRA and Maria do Carmo E. ROLLEMBERG}, journal={Analytical Sciences}, volume={21}, number={2}, pages={149-153}, year={2005}, doi={10.2116/analsci.21.149} }