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Quantitative Spot-Test Analysis of Metformin in Pharmaceutical Preparations Using Ultraviolet-Visible Diffuse Reflectance Spectroscopy
Quantitative Spot-Test Analysis Metformin Pharmaceutical Ultraviolet-Visible Diffuse Reflectance Spectroscopy
2010/1/1
A quantitative spot-test for the determination of metformin in pharmaceutical preparations using diffuse UV-visible reflectance is reported. The procedure is quite simple, involving in the formation o...
A white light phosphor suitable for near ultraviolet excitation
White light emitting Phosphor White LED
2008/1/9
Luminescent properties of Eu2+-doped phosphors with nominal composition of 2SrO MgO xSiO2 (0.8pxp1.2) are studied. The emission spectra consist of a blue band (460 nm) and a yellow band (550 nm), th...