L-(+)-Ascorbic acid, certified, 0.25g

ISO 9377-2 Test for Suitability of Fluorisil Test with stearyl stearate to determine the separation of polar compounds Ready to use solutions Units: 1x25mL, 5x25mL, 10x25mL, 1x100mL Stearyl stearate test solution, 2mg/mL (S-4134) 10mL Extraction

Ethanol standard in water,0.8g/L,water, 1.5mL

PCB 209, 100 µg/ml, Isooctane, 5ml