Silicon in Biological Material. II. Variations in Silicon Contents in Tissues of Rat at Different Ages

Summary The silicon content of several tissues of male rats, Wistar strain, 5 weeks and 30 months of age were determined by a modification of King's method, with special caution to avoid contamination with outside sources of silicon. It is shown by the data that, with increasing age, silicon content significantly increased in kidney, brain, liver, spleen, lung and femur, and decreased in skin.