Nitrate as NO3-, 1000µg/ml in water, 100ml

2-Methylfuran, 100mg

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

5 alpha(H),14ß(H),17ß(H),20R-3ß-Benzyloxycholestane, , Solvent-, Unit , # of units-, Cas.no.