Determination of the Mass of Viruses by Quantitative Electron Microscopy.

摘要

The photometric method of quantitative determination of dry mass by electron microscopy has been applied to the study of various types of viruses: animal, plant, insect, and bacterial. The method is applicable to all viruses having a mass of 1 x 10 to the -18th power g or greater. The molecular weight of viruses can be calculated from the mass value by multiplying it by Avogadro's number.