Method 525.2 Solution B

Tri-n-octyltin chloride, 1000 µg/ml, Methanol, 5

n-Dodecane, ?13C: -32.54, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 112-40-3

Hexavalent Chromium (Cr 6+)