IMAGING THE INTRACELLULAR DEGRADATION OF BIODEGRADABLE POLYMER NANOPARTICLES





Selenium in certain metamorphic rocks

The selenium contents of Precambrian metamorphic rocks from Finland were studied and tentative averages are presented.The pattern of the distribution of selenium in metamorphic rocks can be summarized as follows: Selenium most probably does not enter into the structures of the common silicate minerals, but rather is incorporated in the accessory su

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