Simple collection and 5-minute UHPLC assay for 11 isocyanates

Spray-on polyurethane products containing isocyanates have been developed for a wide range of retail, commercial, and industrial uses to protect cement, wood, fiberglass, steel, and aluminum, including protective coatings for truck beds, trailers, boats, foundations, and decks. The design offers several advantages over existing devices such as: * The ability to achieve low detection limits for both vapor and particulate phase isocyanates * Sampling from 5 minutes > 8 hours * Fast derivatization reactions into stable derivatives * No storage limits before and after sampling * High capacity * No interferences * No breakthrough * No field extraction Discussion Figure 2 shows the chromatogram of a series of 11 common isocyanates.