alpha-HCH, 100 µg/ml, Methanol, 1ml

3-Chlorotoluene,neat,neat,1mL,

2,4,5,6-Tetrachloro-m-xylene, 100µg/ml in MeOH, 5ml

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