Zaharia C N, Dumitrescu S M, Petrescu A
Virologie. 1986 Jan-Mar;37(1):55-60.
Spectrophotometric determinations as regards absorption at 280 nm, 260 nm and 224-237 nm, emission at 280-350 nm and light scattering at 550 nm were performed with suspensions of influenza virus A/Brasil/11/78 (H1N1) over a pH range from 2 to 12. The results obtained proved that changes in spectral parameters were minimal in the pH range from 6 to 10, a fact which could be correlated both with the preservation of the intact virion structure (as visualized by electron microscopy) and with the domain of biological stability of influenza virus.
