Corrosion Inhibitors containing Fluorescent Imidazolines
APQ-containing corrosion inhibitors could be quantified using ultraviolet-excitation fluorescence. Engenium Chemicals (Calgary, AB) has recently developed an intrinsically-fluorescent imidazoline corrosion inhibitor, which when formulated into a corrosion inhibitor package provides for fluorescent detection (with UV excitation) with similar detection limits to APQ formulations. Wilson’s instrumentation can thus be used to identify the presence and concentration of these imidazoline-based corrosion inhibitors.