17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml

Benzo(g,h,i)perylene

Perfluoro-5-methylheptane sulfonate, 200ul x 1.00ug/ml, methanol

2-Aminonaphthalene,100 µg/mL,acetonitrile,1mL,