2,3,5,6-Tetrabromophenol, 1.2ml x 100ug/ml, toluene

2-Chloro[13C12]biphenyl, 50.0µg/mL in Nonane/5% toluene, 1,2ml

Calibration Mixtures: Di-n-butyl sulfide in Isooctane Unit: 1x10mL screw-capped bottle Isooctane µgS/g (ppm) Wt.% S-4050-0-10IO 0 Blank 0 S-4050-1-10IO 1 0.0001 Etc. S-4050-10Kit Kit of above solutions

delta-Valerolactam