Propionic acid-ethyl ester, 250mg

Custom mix, Deuterated Phenol Mixture 8,in toluene assorted concentrations 5x5mL C4: 2407.10 4-n-Butyphenol-d4 100µg/mL 2282.10 4-tert-Butylphenol-d9-2,3,5,6-d4 100µg/mL

Propachlor

Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane