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Liquid-core optical fiber-based resonance Raman scattering (LCOF-RRS) that can enhance Raman intensity 10 9 times has been used to measure β-carotene in CS 2 with the concentration ranging from 10 −7 to 10 −16 M. The 514.5nm excited resonance Raman spectra (ν 1 band) of β-carotene superimposed on a fluorescence background are clearly distinct. The corresponding...
Fourier transform infrared microscopic imaging (FTIRI) was used to quantitatively examine the anisotropies of proteoglycan (PG) and collagen in articular cartilage. Dried 6μm thick sections of canine humeral cartilage were imaged at 6.25μm pixel-size in FTIRI with an infrared analyzer set at 26 different angles between 0° and 180° polarization. Like the amide II and amide III peaks, the 1338cm ...
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