Owner/Consultant, AnalySense
In my 30 years of experience in running virtually every USEPA semivolatile method...the performance of the Agilent J&W DB-UI 8270D GC column has raised the bar for semivolatile analysis...The DB-UI 8270D has demonstrated:
• Superior chromatographic resolution (PAHs specifically are phenomenal)
• Superior inertness (reactivity of acid-fraction components like 4-Nitrophenol and 2,4-Dinitrophenol, which have low pKa values, is minimal)
• Superior breakdown characteristics (4,4'-DDT and Endrin breakdown is well below all method requirements and in many examples <5%!)
• Superior peak tailing performance of Pentachlorophenol and Benzidine (Benzidine, for example is Gaussian in peak shape)
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