Instrumental Analysis (Third Edition) Answers to After-Class Questions-Chapter 9

5. What are the characteristics of the information provided by UV absorption spectroscopy in the identification and speculation of organic compounds? Solution: The information provided by UV absorption spectroscopy is basically about the chromophores and auxiliary chromophores in the molecule, but cannot provide information about the entire molecule. That is, UV spectroscopy can provide important information about some functional groups. The molecular structure of a substance cannot be completely determined, but must be combined with other methods.

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