000			01604nab a2200217 4500
005			20260520003108.0
008			260224s2015 xxu ing
041			_aInglés
245	0	0	_aRefractometric Sensing of Heavy Oils in Fluorescent Core Microcapillaries
260			_a _b _cmayo/jun. 2015
270			_a15/09/2015 ; 15/09/2015
300			_a8 p. ; 487-495
520			_aTranscripción 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.
581			_a3
773	0		_tOil and Gas Science and Technology _g70
942			_cARTICULO
100	1		_aZamora, V. _954920
100	1		_aZhang, Z. _954921
100	1		_aMeldrum, A. _954922
999			_c189214 _d189214