Appendix II Semi-Volatile Mix

1D,1D,2H,2H-1-Hydroxyperfluorohexane,50 µg/mL,MeOH,1mL,

1,8-Dinitropyrene-d8, 10mg

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