By Takayuki Shibamoto
Protecting such themes as traditional chromatographic equipment, accommodating freshen up, and getting ready ingredients for extra instrumental research, this useful source is the single on hand publication exhibiting the best way to decide upon the best innovations for assessing the toxicity of chemical compounds in either nutrition and the surroundings. Containing references, tables, drawings, and images that strengthen the fabric mentioned, this accountable advisor is perfect for analytical, meals, agricultural, and oil chemists; environmental scientists; toxicologists; biochemists; biologists; microbiologists; and upper-level undergraduate and graduate scholars in those disciplines.
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Additional resources for Chromatographic Analysis of Environmental and Food Toxicants
42 The Toxicology of Radioactive Substances In the animals in a calm state, the electrocorticogram of the parietooccipital region, as is known, is characterized by high-volt slow waves of different duration which do not compose a definite stable rhythm. Similar findings were also obtained by us on recording the biocurrents of the brain both in the test and control groups. Comparison of the records of the background bioelectrical activity in the test animals (first group) with the electrocorticograms recorded in the same rabbits but at different times of burdening shows that the spontaneous electrocorticogram for practical purposes did not change.
The last column of Table 6 shows the percentage relationship of the spe cific activities of the tissues for groups 4 and 2. As Table 6 shows, this percentage for all tissues was less than 100 which might be interpreted as evidence of elimination of a certain but appreci able part of the activity fixed in the tissues. However, the difference in the level of activity was significant only for the liver and bone marrow and may be interpreted to mean that the preparation without carrier had a The Toxicology of Radioactive Substances 32 somewhat different distribution with relatively greater accumulation of isotope in the bones and brain.
Rev. Phys. 30, 2, Part 2, 585 (1958). Mod. T H E E F F E C T OF T H E A M O U N T OF STABLE C A R R I E R ON T H E L E V E L OF A C C U M U L A T I O N O F 65Zn F O L L O W I N G D A I L Y O R A L A D M I N I S T R A T I O N OF 65ZnCl2 G. A. AVRUNINA the dilution of the isotope label it must logically follow that the level of accumulation of radioisotope in the body depends on the amount accom panying the administration of stable carrier. In experiments with chronic administration of 60 CoCl 2 and 59 FeCl 3 by means of a tube through the mouth we found that the level of accumulation of the isotope in the body depends on the amount of stable carrier in solution (Avrunina, 1963, 1967).
Chromatographic Analysis of Environmental and Food Toxicants by Takayuki Shibamoto