01604nab a2200217 4500 20260520003108.0 260224s2015 xxu ing Inglés Refractometric Sensing of Heavy Oils in Fluorescent Core Microcapillaries mayo/jun. 2015 15/09/2015 ; 15/09/2015 8 p. ; 487-495 Transcripción del resumen del autor: The refractometric sensing of calibrated heavy oils (density > 1 000 kg/m3) is demonstrated using fluorescent-core microcapillaries. A 25-micron capillary channel was first coated with a high-index layer of fluorescent silicon Quantum Dots (QD). This QD film supports the development of cylindrical Whispering Gallery Mode (WGM) resonances inside the capillary. Heavy oils spanning a wide range of refractive index were pumped into the capillary channel, causing large shifts in the fluorescence WGM resonant wavelengths. The sensitivity for heavy oils approached 250 nm per Refractive Index Unit (nm/RIU) at the higher oil indices, which is the highest sensitivity so far observed for a refractometric sensor operating in the fluorescence mode. This suggests that fluorescent core microcapillaries may be a viable microfluidic alternative for refractometric or chemical sensing in various stages of oil and gas processing, monitoring and usage. 3 Oil and Gas Science and Technology 70 ARTICULO Zamora, V. 54920 Zhang, Z. 54921 Meldrum, A. 54922 189214 189214 0 0 0 0 257033 BAAB BAAB 2026-03-06 200061446 0 200061446 2026-03-06 00:19:25 2026-03-06 ARTICULO