Terbuthylazine, 10.0 µg/ml, Acetonitrile, 10ml

2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5

1,3-Dibromo-2,7,8-trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene

Sodium Formate (CHO2-)