نتایج جستجو برای: cu 962 ppm

تعداد نتایج: 86397  

2012
Varsha Gupta

Our aim to establish the metal (Pb, Cd, Cr, Cu and Zn) levels of wild mammalian scat samples deriving from sanctuaries of Western Rajasthan and compare the concentrations between Desert National Park, Jaisalmer and Gajner Wildlife sanctuary, Bikaner. Restrictions on the sampling because of Wildlife Protection Act (1972) prevents taking of samples of living tissues to analyse body burdens of con...

Journal: :IOP conference series 2022

Abstract This study aimed to determine the optimum conditions for durian skin biomass absorb copper metal (Cu) from its solution. Determination of includes weight, pH biosorption, biosorption contact time, and initial concentration (Cu). adsorbed analyte used Atomic Absorption Spectrophotometry (AAS). In this study, was obtained local waste Parigi Regency, Central Sulawesi Province. The paramet...

2017
Haidong Yao Xia Zhao Ruifeng Fan Hamid Sattar Jinxin Zhao Wenchao Zhao Ziwei Zhang Yufeng Li Shiwen Xu

Ion homeostasis plays important roles in development of metabolic diseases. In the present study, we examined the contents and distributions of 25 ions in chicken muscles following treatment with selenium (Se) deficiency for 25 days. The results revealed that in chicken muscles, the top ranked microelements were silicon (Si), iron (Fe), zinc (Zn), aluminum (Al), copper (Cu) and boron (B), showi...

2006
Beatriz C. Barja Amanda Remorino Pedro F. Aramendia

Three Eu(II1) luminescent compounds were separately entrapped in a xerogel porous silica matrix and finely ground particles of it were deposited on a glass support with polyvinylacetate (PVAc) as a binder to build a thin film sensor. These 3 devices were immersed in aqueous solutions of Cu(I1) and the content of this metal was evaluated by emissionquenching experiments. The sensor containing th...

کریم‌پور , محمد حسن ,

The Qaleh-Zari specularite- rich Cu-Au-Ag deposit is located 180 Km south of Birjand. Host rocks are mainly Tertiary andesites and andesitic basalts and some Jurassic shales and sandstones. Andesitic rocks from the western region of Qaleh-Zari were dated to 40.5±2 Ma. Four trends of faults and joints are identified in the mine area.  The oldest is mineralized. Three major sub-parallel quartz ve...

2015
Anitha Senthamizhan Asli Celebioglu Brabu Balusamy Tamer Uyar

Here, a distinct demonstration of highly sensitive and selective detection of copper (Cu(2+)) in a vastly porous cellulose acetate fibers (pCAF) has been carried out using dithiothreitol capped gold nanocluster (DTT.AuNC) as fluorescent probe. A careful optimization of all potential factors affecting the performance of the probe for effective detection of Cu(2+) were studied and the resultant s...

2009
Yong-Gyoo Kim Inseok Yang Yong Shim Yoo

− We have developed a blackbody block system for comparing thermocouple temperature scales realized using fixed-point and radiation methods. Platinum/palladium, type S and type B thermocouples were calibrated using the freezing points of Ag, Cu, Fe-C, Co-C, and Pd (only for Type B). The radiation thermometer used was an LP4 linear pyrometer operated at a central wavelength of 650 nm. Two scales...

Journal: :Metallomics : integrated biometal science 2014
Claire M Weekley Anu Shanu Jade B Aitken Stefan Vogt Paul K Witting Hugh H Harris

Dietary selenium has been implicated in the prevention of cancer and other diseases, but its safety and efficacy is dependent on the supplemented form and its metabolites. In this study, X-ray absorption spectroscopy (XAS) and X-ray fluorescence microscopy (XFM) have been used to investigate the speciation and distribution of Se and Cu in vivo. In kidneys isolated from rats fed a diet containin...

2013
Nathalie Arnal Omar Castillo María J. T. de Alaniz Carlos A. Marra

Copper (Cu) and cholesterol (Cho) are both associated with neurodegenerative illnesses in humans and animals models. We studied the effect in Wistar rats of oral supplementation with trace amounts of Cu (3 ppm) and/or Cho (2%) in drinking water for 2 months. Increased amounts of nonceruloplasmin-bound Cu were observed in plasma and brain hippocampus together with a higher concentration of cerul...

Journal: :International scientific and vocational studies journal 2023

Soil samples in Moryayla village located 156 km northeast of Erzurum and Cu mineralization area around it were collected randomly. In these samples, 20 taken order to investigate the metals found pollution limits sources that cause this pollution. The geochemical analyzes (Cd, Cr, Cu, Ni, Pb, Zn Fe) soil made evaluated with parameters. calculation parameters, enrichment factor (EF); geoaccumula...

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