N-Nitrosodi-n-propylamine-d14

EPA 528 rev. 1.0 Internal Standard Solution 2 200µg/mL in dichloromethane; unit: 1x5mL 2081.6 2,3,4,5-Tetrachlorophenol [4901-51-3]

Metolachlor, 100µg/ml in MeOH, 1ml

4-n-Octylphenol-d4