EPA Method 525 Spike B

Hexaethylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 604-88-6

2,4-D (13C6, 99%) 100µg/mL in Acetonitrile, 1,2ml

Custom Mixture of saturated biomarker hydrocarbons 3 components, each 12,5µg/mL in isooctane 0609.29 alpha alpha alpha (20R,24R)-24-Ethylcholestane 1321.29 17 alpha(H),21ß(H)-30-Norhopane 0132.30 17 alpha(H),21ß(H)-Hopane