Solvent Extraction and Determination of Magnesium Biological Materials.

Abstract

plutonium-241, is only 4 X 10-5, the initial activity of the uranium is significant because of its short half-life of 6.75 days (7).Results for the alpha-gamma method showed a greater variation from the expected americium growth for two reasons. 65 64 103 96 218 214 242 228mended for extending the range to 0.2 ppm. This lower limit represents a count rate of about 100 counts/minute in 250 µg of typical plutonium, and is below the usual background of a gamma counter. Increasing the sensitivity of the method by employing much larger sample size enhances the hazard of spread of contamination during extraction and therefore is not recommended.

Radiochemical Separation and Determination of Cadmium from Biological Materials by Solvent Extraction

“…Human kidney tissues weighing 0.1 to 0.3 g were digested according to the method of HATTK et al [7]. The residue was dissolved in 0.1 Ν nitric acid with heating and the volume was adjusted to a total of 10 ml.…”