Spectral analysis can usually obtain what information other analytical methods can not obtain

Spectral analysis can usually obtain other analytical methods can not obtain the structure of the atom or molecule information. According to the query related information: spectral analysis can be divided into molecular spectra and atomic spectra. It is mainly the use of molecules in the valence electrons jump and produce, so this absorption spectrum is determined by the distribution of valence electrons in the molecule and the combination of the situation, the spectral analysis method has a faster analysis, easy to operate, do not need pure samples, can be measured at the same time, a variety of elements or compounds, selective, high sensitivity, less damage to the sample and so on, but of course, it also has certain limitations.