Fenthion-oxon-sulfoxide, 100µg/ml in AL, 5ml

n-Pentyl acetate,1000 µg/mL,MeOH,1mL,

Alachlor OA Sodium Salt, 100μg/mL in MeOH, 1ml

ASTM Method D2887 Calibration Sol., in chloroform, 1ml