Dibenz[a,h]anthracene-d14, 100µg/mL in Toluene, 1ml

4-Ethylcatechol, 100 µg/ml, Methanol, 10ml

Alcohol-Glycol Standard, 4000µg/ml in Water, 1ml

2,2',3,4,4',5,5'-Heptachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane