Quantitative non-targeted screening with predicted response factors is not for regulation, but can rank environmental chemicals by concentration and toxicity.
Gas chromatography–mass spectrometry (GC–MS) reveals a four-stage polycyclic aromatic hydrocarbons (PAH) breakdown in oil sludge co-composted with manure.
In this third part of " Conversations with Michael Dong," a series on fundamentals of HPLC in pharmaceutical analysis, LCGC International’s "Perspectives in HPLC" column editor discusses the retention mechanism of hydrophobic interaction.