Imazalil, 100 µg/ml, Ethyl acetate, 5ml

Tetrachloro-m-xylene, 1000μg/ml in MeOH, 1ml

N-methylperfluoro-1-butanesulfonamide, 50µg/ml in MeOH, 1,2ml

EPA Method 8240A Matrix Spiking Standard