... color of the lavage uid was dark), and activated charcoal and Ni ec® (2 L aqueous solution containing 2.93 g NaCl, 1.485 g KCl, 3.37 g NaHCO3 and 11. 37 g Na2SO4) were administered ... oxidizer (several % hydrogen peroxide and others). Usually, the hair dye components and the coupler are contained in the rst bottle, and the oxidizer and other compound(s) contained in the ... involved, a 10-µL each of their standard solutions (100 µg/mL) is combined (in total 30 µL) and mixed with 470 µL of blank serum to prepare 500 µLf of the spiked standard solution (2 µg each/mL)g.ii....