AGGREGATION OF CHLOROPHYLL A IN AQUEOUS DIMETHYL SULFOXIDE
- 5 September 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 11 (9) , 1445-1448
- https://doi.org/10.1246/cl.1982.1445
Abstract
In aqueous dimethyl sulfoxide(DMSO) solution, chlorophyll a (chl a) aggregated to give several colloidal forms; these were spectroscopically characterized as A-683, A-695, and colorless one. The water/DMSO ratio was the determining factor of the type of form obtained. The spectrum of A-683, which formed in 30–50 v/v % aqueous DMSO solution, was conspicuous bacause of its very high and narrow absorption band at 683±1 nm. The spectroscopic transition among these aggregated forms of chl a in aqueous DMSO is described.Keywords
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