Hexavalent Chromium (Cr 6+)

3-Methyl-2-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17324-04-8

Mass-Labelled Chlorobenzene Solution/Mixture, 1.2ml, isooctane

Lactic acid, 100mg