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

Ethyltri-n-butyltin-d27 (tri-n-butyl-d27), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

n-Heptacosylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

4-tert-Octylphenol-di-ethoxylate, 10.0 µg/ml, Ace