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

2,2',3,3',5,5',6,6'-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Naltrexone (base, anhydrous), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 16590-41-3