Spike Solution #1

(24R)-24-Methylcholest-5-ene and (24R)-24-Ethylcholest-5-ene, 200µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 76866-89-2 / 76866-91-6

Polyethyleneglycol mono-4-nonylphenyl ether (n=2)

Thorium (Th)