نتایج جستجو برای: aqua regia extraction
تعداد نتایج: 170681 فیلتر نتایج به سال:
Surveys were carried out in Kondopoga and Kostomuksha, where the main industries are pulp-and-paper making iron ore mining concentration, respectively. Samples taken from top 0–10 cm soil layer sites belonging to different land use categories content of heavy metals (Pb, Cu, Zn, Ni, Co, Cr, Mn) samples was determined by atomic absorption spectrophotometry (Aqua Regia extract). In addition, subs...
Spent biomass of different seaweeds such as Sargassum wightii, Turbinaria conoides, Padina tetrastomata and Ulva lactuca were evaluated for the nutritional benefits in aqua feeds. Basic nutritional value, of seaweeds contains a number of pigments, defensive and storage compounds, and secondary metabolites that could have beneficial effects in farmed fish. Only a small fraction of algal species ...
Titanium is biocompatible and widely utilized in a variety of applications. Recently, titanium in pico-nanometer scale and soluble form (Aqua Titan) has expanded its use to applied human health and performance. The purpose of this article is to review the current evidence associated with specific physiological responses to Aqua Titan-treated materials. In vitro studies have shown that applicati...
Antioxidant supplements from plants are vital to count the oxidative damage in cells. We assessed the antioxidants and antibacterial activity of green hull of Juglans regia in this study. According to our results the maximum antibacterial activity was observed in ethanolic extract when compared to other extract. So, the ethanolic extract was studied for antioxidant activity which exhibited high...
Context The NaHCO3-extractable soil K test (Colwell K) is the most frequently used method for across Australia, but there still uncertainty about suitability of testing guidelines heavy-textured soils.Aims To determine whether Colwell suitable predicting plant-available on loam- and clay-textured types developed from highly weathered parent materials in Western Australia (WA).Methods Nine metho...
Abstract The health risk of students’ exposure to some potentially toxic metals in classroom dusts Southeast, Nigeria was assessed. Dust particles were collected from classrooms public high schools and digested with aqua regia before analysis for selected by atomic absorption spectrophotometry. geoaccumulation index, contamination factor the pollution load index assessed metal concentrations du...
Abandoned sterile dumps can be a significant source of environmental pollution, therefore the distribution trace elements throughout mining is vital. Monitoring factors in closed perimeters aims to track quality discharged waters emissary and assess acid mine drainage, soil vegetation, stability, condition land surfaces within perimeter deposits. One primary sources land, water air pollution du...
This study was conducted to highlight status and distribution of potentially toxic elements (PTEs) in Usangu agroecosystem-Tanzania. The involved 198 soil samples from 10 irrigation schemes including three land use. concentrations selected PTEs (Cd, Cr, Cu, Pb, Zn, As, Hg, Co, Nie etc.) were determined estimate status, distribution, contamination hierarchy. total bioavailable by aqua regia dige...
This study aims to understand the soil impacts of illegal dumpsites in Malaysia through quantifying heavy metals two dumpsites, one receiving construction waste and other municipal solid waste. Five samples were collected from each dumpsite, sampling was repeated second week examine temporal changes levels metals. All conducted triplicates. The sieved, dried, digested with aqua regia at 70 °C, ...
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