EPA Method 300.0 Anions

17?(H),21?(H)-(22RS)-Trishomohopane,100 µg/mL,isooctane,1mL,

Isopropylphenyl phosphate (monoisopropylmonophenyl phosphate),100 µg/mL,isooctane,1mL,

Paraoxon-methyl, 100 µg/ml, Ethyl acetate, 5ml