4-Nitrophenol, 100 µg/ml, Acetonitrile, 1ml

4-tert-Octylphenol,1000 µg/mL,MeOH,1mL,

Spiking Standard 1

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