Multi-Element Solution 1

1,2,3,4,6-Pentachloronaphthalene, 1.2ml x 50ug/ml, nonane

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no.

EDDP-d3 perchlorate,100 µg/mL (as pyrrolinium) ,MeOH,1mL,