Methyl paraoxon, 1000µg/ml in MeOH, 1ml

EPA 528 rev. 1.0 Sample Fortification Solution 2 100µg/mL in acetone; unit: 1x5mL 2396.8 2,4-Dimethylphenol-3,5,6-d3 [93951-75-8]

3-Methylindole, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 83-34-1

2,3,7,8-Tetrachlorodibenzothiophene, 1.2ml x 50ug/ml, toluene