EPA Method 8270C Pesticide Mix #20

3-Methylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 616-44-4

9-Nitroanthracene-d9, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 220381-38-4

2,3-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene