(-)-Nicotine, 10 µg/ml, Methanol, 10ml

5-Hydroxy-2,4-D, 10mg

EPA 8041A Surrogate Standard PFB-derivatives S-4373 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol-PFB

EPA Method 630/630.1 Stock Solution #2