Selective laser photolysis of organic molecules in complex matrices
| Autor: | Jean-Claude Baccou, Alain Denis Petit, Christophe Moulin |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
biology
Chemistry General Chemical Engineering General Physics and Astronomy General Chemistry Mass spectrometry biology.organism_classification Photochemistry Bergapten law.invention chemistry.chemical_compound Safrole Porphyridium cruentum law Absorption band Phycocyanin Gas chromatography Essential oil |
| Zdroj: | Journal of Photochemistry and Photobiology A: Chemistry. 85:165-172 |
| ISSN: | 1010-6030 |
| DOI: | 10.1016/1010-6030(94)03897-4 |
| Popis: | Laser photolysis was used to eliminate selectivity non- desirable (toxic, carcinogenic, photosensitive) molecules in complex solutions for applications in various fields, such as the farm-produce industry, cosmetics, perfumes or biology. The principle of this experiment is based on the tuning of the laser wavelength to an absorption band of the non-desirable molecules which are excited and then dissociated. Destruction of the molecules is monitored by spectral changes, and photoproducts can be characterized by gas chromatography and mass spectrometry. The advantages of this technique are its rapidity, in situ reaction and quantitative elimination. Examples including the destruction of thujone in extract of Salvia, bergapten in essential oil of Bergamot, safrole in essential oil of Sassafras and phycocyanin and phycoerythrin in Porphyridium cruentum are presented and discussed. |
| Databáze: | OpenAIRE |
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