Determination of the refractive index of glucose-ethanol-water mixtures using spectroscopic refractometry near the critical angle

Sobral H.; Pena-Gomar M.

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Determination of the refractive index of glucose-ethanol-water mixtures using spectroscopic refractometry near the critical angle

机译：在临界角附近使用光谱折光法测定葡萄糖-乙醇-水混合物的折射率

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A spectroscopic refractometer was used to investigate the dispersion curves of ethanol and D-glucose solutions in water near the critical angle; here, the reflectivity was measured using a white source. Dispersion curves were obtained in the 320 - 1000 nm wavelength range with a resolution better than 10(-4) for the refractive index, n. The differential refractive index is measured as a function of wavelength, and a simple expression is proposed to obtain the refractive index of the glucose-ethanol-water ternary system. Using this expression, combined with the experimental differential refractive index values, the concentrations of individual components can be calculated. (C) 2015 Optical Society of America

机译：用分光折光仪研究了临界角附近乙醇和D-葡萄糖溶液在水中的分散曲线。此处，反射率是使用白色光源测量的。在320-1000 nm波长范围内获得了色散曲线，其分辨率n优于10（-4）。测量折射率的微分作为波长的函数，并提出一个简单的表达式来获得葡萄糖-乙醇-水三元系统的折射率。使用该表达式，再结合实验的微分折射率值，可以计算出各个成分的浓度。（C）2015年美国眼镜学会

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《Applied optics》 |2015年第28期|共6页
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Sobral H.; Pena-Gomar M.;
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1. Determination of the refractive index of glucose-ethanol-water mixtures using spectroscopic refractometry near the critical angle [J] . Sobral H., Pena-Gomar M. Applied optics . 2015,第28期

机译：在临界角附近使用光谱折光法测定葡萄糖-乙醇-水混合物的折射率
2. DETERMINATION OF REFRACTIVE INDEX AND THICKNESS OF THICK TRANSPARENT FILMS BY VARIABLE-ANGLE SPECTROSCOPIC ELLIPSOMETRY - APPLICATION TO BENZOCYCLOBUTENE FILMS [J] . Guo SW., Hagel OJ., Arwin H., Applied optics . 1996,第10期

机译：变角分光光度法测定厚透明薄膜的折射率和厚度-在苯环膜薄膜中的应用
3. DETERMINATION OF REFRACTIVE INDEX AND THICKNESS OF THICK TRANSPARENT FILMS BY VARIABLE-ANGLE SPECTROSCOPIC ELLIPSOMETRY - APPLICATION TO BENZOCYCLOBUTENE FILMS [J] . Guo SW., Hagel OJ., Arwin H., Applied optics . 1996,第10期

机译：变角分光光度法测定厚透明薄膜的折射率和厚度-在苯环膜薄膜中的应用
4. Critical-angle refractometry: accuracy analysis [C] . Diana Tentori, CICESE, Ensenada, Current Developments in Optical Design and Optical Engineering . 1991

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5. Rainbow refractometry: A non-intrusive measurement technique for determining droplet size, refractive index and temperature. [D] . Hom, James. 2000

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6. IR spectroscopic determination of gel state miscibility in long-chain phosphatidylcholine mixtures. [O] . R Mendelsohn, G L Liang, H L Strauss, 1995

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7. Refractive-Index Determination of Solids from First- and Second-Order Critical Diffraction Angles of Periodic Surface Patterns [O] . Meichner Christoph, Schedl Andreas Erich, Neuber Christian, 2015

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Determination of the refractive index of glucose-ethanol-water mixtures using spectroscopic refractometry near the critical angle

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