Di-n-butyl phthalate-3,4,5,6-d4

Glufosinate-ammonium, 100 µg/ml, Water, 5ml

2,5-Dimethylpyridine,neat,neat,100mg,

2,3,3',4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane