pH 7.0 Standard @ 25°C

3,3',5,5'-Tetrabromobisphenol-A [rings; 13C12], 50µg/ml in MeOH, 1,2ml

Cyanofenphos, 10 µg/ml, Ethyl acetate, 10ml

2,4'-DDE-d8 (dichloropropyl-d4), 100µg/mL in AL, 1ml