PIANO Paraffins Standard, 1ml

Perfluoro-n-[1,2,3,4-13C4]butanoic acid, 50µg/ml in MeOH, 1,2ml

2,4,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Copper (Cu), 1000µg/ml in 2%-HNO3/Water, 100ml