Nitrapyrin, 10 µg/ml, Ethyl acetate, 10ml

2-Bromo-1,3,7,8-tetrachlorodibenzo-p-dioxin (>95%), 1.2ml x 48ug/ml, toluene

3 Deuterated Compounds Internal Standard Mix 3 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Benzene-d6 39.7 Naphthalene-d8 20.9 Ethylbenzene-d 10 39.3

3,4-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66291-31-4