Dazomet, 10 µg/ml, Ethyl acetate, 10ml

(±)-Nicotine-d3 (N-methyl-d3),1000 µg/mL,acetonitrile,1mL,

4-(Methylsulfonyl)-2-nitrobenzoic acid, 100mg

Ethanol standard in water,0.2g/L,water, 3mL