delta-HCH, 10.0 µg/ml, Ethyl acetate, 10ml

2,2',3,3',4,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL,

7,9-Di-tert-butyl-1-oxaspiro[4,5]deca-6,9-die ne-2,8-dione, 25mg

PSA-C18-Mix 2