نتایج جستجو برای: cu and cd concentrations were measured using an icp

تعداد نتایج: 18077280  

Journal: :international journal of environmental research 2014
s.m. shoaei s.a. mirbagheri a. zamani j. bazargan

concentrations of heavy metals (ni, co, zn, cd, pb and cu) in the reservoir of shahid rajaeidam, one of the main water reservoirs in north part of iran, were determined using a differential pulse polarography(metrohm 797 va) and compared with the national and international specified maximum contaminant levels(mcl) for different purposes of water use. the results showed that concentrations of cd...

Journal: :journal of chemical health risks 0
behsan hemmatinegad department of veterinary medicine, shahrekord branch, islamic azad university, shahrekord, iran mehdi moradi sarmeidani department of veterinary medicine, shahrekord branch, islamic azad university, shahrekord, iran amir hosein yoosefi department of veterinary medicine, shahrekord branch, islamic azad university, shahrekord, iran firooz fadaeifard department of aquatic animal health and diseases, faculty of veterinary medicine, shahrekord branch, islamic azad university, shahrekord, iran

this study was conducted to determine the residues of mercury (hg), lead (pb), copper (cu) and cadmium (cd) in the imported tilapia fillets. thirty random samples from imported tilapia fillets were collected from different markets in isfahan city, central iran. they were analyzed using graphite furnace atomic absorption spectrometer (perkin elmer 800) for pb, cu, cd and flow injection mercury s...

ژورنال: طلوع بهداشت یزد 2019

Introduction:Today, the contamination caused by rapid rate of developing industries has been drawing attention from scientific and environmental communities to itself. This study was conducted to investigate the concentration and distribution of heavy metals in topsoil of industrial area in Ardakan city. Methods: For this porous, sampling of topsoil (0-5 cm) was performed using 5 transects in ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده هنر 1391

now-a-days graphic design plays a major role in influencing culture, society, business, and customers, in such a way that one could look upon every individual as a potential customer. graphic designers seek to identify customers needs and find an intelligent solution for them. correct identification and understanding of those needs is the first step towards achieving ones goals. marketing knowh...

The concentrations of cadmium, copper, nickel, zinc and lead were investigated in various components of smooth-leaved elm (Ulmus carpinifolia) tree in three sites (polluted, moderately polluted, and control) in Abadeh, Iran, in July 2015. The experiment was conducted using factorial experiment in a Completely Randomized Design with three replications. The concentration of heavy metals was measu...

2008
D. H. LIU M. WANG J. H. ZOU W. S. JIANG

The effects of the different concentrations of Cd on accumulation of four cultivars of maize (Zea mays L.) viz., Nongda No. 108, Liyu No. 6, Shendan No. 10 and Tangkang No. 5, were investigated using inductively coupled plasma atomic emission spectrometry (ICP-AES). The Cd accumulation in the roots and shoots and the interactions among Mn, Fe and Cu were also analyzed in the present study. The ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1392

the purpose of this study was to investigate the effect of task repetition on accuracy of iranian efl learners ’speaking ability. in order to achieve this purpose, a null hypothesis was developed: there is no statistically significant difference between accuracy speaking ability in iranian efl learners by use of task repetition. ; of course i should mention that, beside this null hypothesis, an...

F. Monsefrad , J. Imanpour Namin , S. Heidary ,

 Concentration of heavy and toxic metals Cu, Zn, Cd, Pb and Hg were determined in liver and muscles of Rutilus frisii kutum and their relationships with growth parameters (length, age, condition factor) and hepatosomatic index were examined. Thirty-six fish samples were collected from February through March 2009 caught by beach seine in the southwest parts of the Caspian Sea. Atomic ab...

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

vocabulary as a major component of language learning has been the object of numerous studies each of which has its own contribution to the field. finding the best way of learning the words deeply and extensively is the common objective of most of those studies. however, one effective way for achieving this goal is somehow neglected in the field. using a variety of activities such as games can r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

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