Molybdenum, 1000µg/ml in in 0.5%-NH4OH / H2O,100ml

Catechin, >98%, 20mg

2,4,6-Tribromophenol, Internal Standard Stock Solution Cat No 2060.6 1.148mg/mL, in ethanol, 5mL

1,1-Dichloro-2,2-bis(4-Chlorophenyl-d4)ethylene, 100µg/mL in IO, 1ml