Soret gang
The Soret band is the most intense band in the visible range of the absorption spectra of porphyrins . It lies in the blue wavelength range and is named after its discoverer Jacques-Louis Soret , who first discovered and described it in diluted blood. It is an important tool in the absorption spectroscopy of porphyrins, which include heme and chlorophyll .
The absorption maximum depends on the polarity of the solvent. In the same solvent, different chlorophylls such as chlorophyll a, b or bacteriochlorophyll a can be distinguished by the characteristic wavelength of the absorption maximum and the molar extinction coefficient .
Individual evidence
- ^ Jacques-Louis Soret: Analyze spectrale: Sur le specter d'absorption du sang dans la partie violette et ultra-violette . In: Comptes rendus de l'Académie des sciences . 97, 1883, pp. 1269-1270.
literature
- DW Lawlor: Photosynthesis: Metabolism, Control and Physiology. Longman 1987