Проведена оценка степени загрязнения водной среды в нескольких пунктах реки Волги в окрестностях города Саратова методами гидрохимического анализа и фитоиндикации. Определены индексы загрязнения воды и установлены классы качества водной среды.
Assess the degree of pollution and natural purification of the water environment of the Volga river near the city of Saratov. Defined indexes pollution and natural purification of the water and set classes quality of the aquatic environment.
An express authenticity estimation of some cephalosporin antibiotics of II and III generations are developed by spectrophotometry. An identity of drugs such as cefotaxime (Russia) and claforan (France), cefuroxime (Russia) and cefuroxime axetil (England) is shown.
