Set of 2 Ampules 524.2 Back Catalog number: 33201 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-F200 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request DF-12379-S 1,2,3,7,9-Pentachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 677437 Triethyl phosphate, 250mg Price on request