Term: direct-injection burner (for analytical flame spectroscopy)
https://doi.org/10.1351/goldbook.D01770

Definition:
A burner in which oxidant and fuel emerge from separate ports and are mixed above the burner orifices through their turbulent motion.

Source: Orange Book, 2nd ed., p. 165 (https://media.iupac.org/publications/analytical_compendium/)

Citation: 'direct-injection burner (for analytical flame spectroscopy)' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.D01770

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