نتایج جستجو برای: the concentration of total copper cu

تعداد نتایج: 22842763  

A Farahmand A KHosravan M.R SHekibaei S Zare

Background & Aims: Today, toxic effluents have created ecological and health problems in and around the industrial cities resulting in death of nearby living organisms. The aim of this research was to increase the elimination of copper and zinc from copper factory effluents in Kerman/Iran through mutation inducing in metal-resistant bacteria by using Acriflavine, Acridine orange and Ethidium br...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1387

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

al. et Gh. R. Banagar

The aim of this study was to determine and compare the concentration of copper (Cu) in liver and muscle of two fish species Squalius cephalus and Capoeta capoeta gracilis. The fish were caught in four sampling sites along Tajan River, Mazandaran Province, northern Iran. The concentration of Cu was determined using flame atomic absorption spectrometry. There were significant differences (P

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان 1389

until now many studies have been done over recent decades throughout the world to show the right age to start english. in iran, research is still at an early stage in terms of evaluating teachers’ beliefs about teaching children english. the problem of at what age to start teaching english and how to teach english to elementary school children has not been solved neither in this country nor els...

Journal: :iranian journal of science and technology (sciences) 2012
m. a. ashrafi

the chemical speciation of heavy metals (arsenic, chromium, copper, lead, zinc and tin) in the sediments offormer tin mining catchment bestari jaya, peninsular malaysia was determined by using the latest version of the community bureau of reference, usually called the bcr 3-step sequential extraction procedure. furthermore, a fourth step was introduced for digestion and analysis of the residue....

A. Hosseini H. Khazali, H. Rokni O. Pordel

Copper (Cu) plays an essential role in the human and animal body system. One of the most important sources of Cu is milk. The purpose of this study was to determine the effect of different doses of injection of inorganic Cu and organic Cu as Cu-arginine and Cu-lysine on Cu concentrations of milk in the lactating Zandi’s ewes. This experimental research involved 54 lactating Zandi’s ewes collect...

Journal: :avicenna journal of medical biochemistry 0
jamshid karimi department of biochemistry and nutrition, hamadan university of medical sciences, hamadan, ir iran; department of biochemistry and nutrition, hamadan university of medical sciences, hamadan, ir iran. , +98-8138380462 ali asghar moshtaghie department of biochemistry, isfahan university of medical sciences, isfahan, ir iran bahram haghighi department of biochemistry, isfahan university of medical sciences, isfahan, ir iran

conclusions the elevation of hmw-alp activity in cu treated animal suggests the occurrence of biliary disease. this may be used as a biomarker for the diagnosis of copper toxicity. results obtained data showed that with increasing administration of copper, the alp activity was elevated significantly. in comparison with the control group the elevations were between 20%-56% using gel filtration c...

The present study investigates an NF process for removal of copper and hexavalent chromium, studying the effect of pH (5, 7, 9) as well as contaminants' concentration (50, 500, 5000 µg/L) at a constant pressure of 8 bar; with the recovery rate, regulated at 75±2%. To determine the main factors, affecting the system performance, and evaluate the interaction effects among the factors, the experim...

Journal: :Bioresource technology 2009
Zhaohui Guo Mallavarapu Megharaj Michael Beer Hui Ming Mohammad Mahmudur Rahman Weihong Wu Ravi Naidu

The metals contamination in surface soils and their accumulation in wild plants from the abandoned Burra and Kapunda copper mines located in South Australia were assessed, and the predominant bacterial diversity in the contaminated surface soils from these two abandoned copper mine sites were evaluated through polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analysis...

ژورنال: بوم شناسی آبزیان 2016

Chabahar Bay near Makran Sea, with the ports of transactions, has always been under the influence of annual monsoon the Indian Ocean. Density changes and heavy metals copper and zinc of Chabahar bay subtidal sediments were studied in 22 stations and three seasons that include: pre-monsoon, monsoon and post-monsoon during 2014. Polychaeta abundances mean were for premonsoon  1261.49±38.81, monso...

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