“Optical Brightening Agents: A Visual Examination of the Solubility of Brighteners in Paper after Aqueous Treatment” explores the migration and loss of brighteners in paper after short periods of washing in deionized water.
A bibliography of the ten most relevant publications regarding the ink of the Sepia officinalis was compiled. One of these publications, “Characterization of sepia ink in ancient graphic documents by capillary electrophoresis,” López-Montes, et al. was then summarized and reviewed.