Brytkova A.D.
AGE CHANGES OF MICROELEMENTS CONTENT IN ORGANS AND TISSUES OF ANIMALS ^{[№ 2 ' 2006]}
The content and dynamics of age changes of some chemical elements in organs and tissues of animals, beginning from their pre-natal development is studied in this article. Microelements were determined with quantitative emissive spectral analysis on the device ISP-28. Given data certifies that content of iron, copper, zinc, nickel and manganese is increased in organs of fetuses. During the first period of life (milk period) calves have microelements content decrease and some periodicity in the growth process.

Brytkova A.D.
THE CONTENT OF MICROELEMENTS IN THE GROUND AND PLANTS OF ORENBURG PRE-URAL ^{[№ 1 ' 2003]}
The content of the chemical raw of elements in the ground and plants has been studied. Microelements were defined with the quantitative emission spectrum analysis on the device ISP-28. It's determined, that the ground of the arable horizont's topsoil of south low-powered loamy Orenburg Pre-Ural is rather enriched with the gross content of the explored microelements. If we compare the facts of some other explorers, there is a lack of copper, zinc, cobalt, molybdenum in the plants of the explored region.