Leptophos, 100 µg/ml, Ethyl acetate, 5ml

13C LABELED PCB MIXTURE PCBS-77/101/141/178 10UG/ML IN NONANE

2,3-Benzofluorene, 1000µg/ml in methylene chloride, 1ml

Chlorthiamid, 100 µg/ml, Methanol, 1ml