Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml

Thiophenol

n-Perfluoroheptanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 375-85-9

1,1,1,3-Tetrachloroundecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 56686-55-6