4-tert-Butylphenol, 100 µg/ml, Acetone, 5ml

3,3',4,5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Tri-n-butyltin-d27 chloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1257647-76-9

Nitrite (NO2-) as N