D4-Picolinafen, 100 µg/ml, Acetonitrile, 1ml

beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

2-Methylnaphthalene, 100 µg/ml, Acetonitrile, 1m

trans-Chlordane