ORGANIC CHEMISTRY Chapter 13 The greater the number of conjugated multiple bonds a compound contains, the longer will be the wavelengt at which the compound absorbs light max nm 217219 254 256 258 290 497 β Carotene(胡萝卜素) Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 The greater the number of conjugated multiple bonds a compound contains, the longer will be the wavelength at which the compound absorbs light. 497 β-Carotene (β-胡萝卜素) 217 258 290 256 O λ 219 254 max (nm)
ORGANIC CHEMISTRY Chapter 13 13.9C Analytical Uses of UV-vis Spectroscopy o Structure elucidation of organic molecules-to indicate whether conjugation is present in a given sample g Determining the concentration of an unknown sample o Used in biochemical studies to measure the rates of enzymatic reactions o Used in environmental chemistry to determine the concentration of various metal ions Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 13.9C Analytical Uses of UV-Vis Spectroscopy Structure elucidation of organic molecules — to indicate whether conjugation is present in a given sample. Determining the concentration of an unknown sample. Used in biochemical studies to measure the rates of enzymatic reactions Used in environmental chemistry to determine the concentration of various metal ions