ICP-MS Tuning Standard 2

Tri-iso-butyl phosphate, 100µg/ml in MeOH, 5ml

alpha alpha alpha (20R,23R,24R)-4 alpha,23,24-Trimethylcholestane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 146276-37-1

Chlorpyriphos-ethyl, 100µg/ml in Acetonitrile, 5ml