TY - JOUR TI - Spectrophotometric determination of total proteins by derivatization with `rô´-benzoquinone in a flow system PY - 2001 AU - Lichtig, Jaim AU - Guarilha Junior, Orlando AU - Oliveira, R. M. S. AU - Masini, Jorge Cesar AU - Trujillo, Luz Marina T2 - Analytical Letters SN - 0003-2719 PP - New York VL - 34 IS - 2 SP - 193-200 ER -