L-Isoleucine, 250mg

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

2,2',3,3',4',5,5'-Heptachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

1-Methyl-2-pyrrolidinone