نتایج جستجو برای: major ions

تعداد نتایج: 747958  

Journal: :international journal of environmental research 2012
m.n. manju p. resmi t.r. gireesh kumar c.s. ratheesh kumar r. rahul

water samples were collected from five selected mangrove ecosystems along kerala coast, north of cochin, on seasonal basis and analysed for various hydrographic parameters. to explain spatiotemporalvariations and the processes controlling their distribution, anova (two factor without replication),correlation and principal component analysis were carried out. concentration of total nitrogen vari...

Journal: :journal of tethys 0

in this research, the groundwater quality of hoz–e–soltan lake and its catchment was studied for drinking, domestic and irrigation uses according to different parameters. this lake with 195 km2 catchment area is located 85 km of southwest of tehran–qom highway. in order to investigate groundwater quality characteristics in the study area, 34 data from water of well belong to 2008 selected to pr...

Journal: :Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Food Science and Technology 2021

Journal: :محیط شناسی 0
رضا حسن زاده کارشناس ارشد زمین شناسی زیست محیطی. دانشگاه شهید باهنر کرمان.–مرکز بین المللی علوم، تکنولوژی پیشرفته و علوم محیطی احمد عباس نژاد استادیار بخش زمین شناسی دانشگاه شهید باهنر کرمان محمد علی حمزه کارشناس ارشد زمین شناسی زیست محیطی، کارشناس مؤسسه ملی اقیانوس شناسی

in this article, groundwater samples in urban areas of kerman studied to assess the degree of pollution by heavy metals and major ions and other water quality parameters as a consequence of geology and anthropogenic sources. 43 samples were collected and analyzed by graphite furnace atomic absorption spectrometry, titration and potentiometery for some heavy metals (cd, cr, cu, mn, pb and zn), m...

Gholam Reza Nabei Hamid Rashedi Mehdi Esmaeili Bidhendi, Naser Mehrdad

As the electrochemical method, the Fast Fourier Transform (FFT) Stripping Cyclic Voltammetry detection method was designed for measurement and monitoring of adsorbed mercury ions by new modified adsorbent based on mesoporous silica as a new adsorbent. In this respect, SBA-15 as mesoporous silica and 1, 3, 5 Trithiane as effective modifier ligand were chosen, and the modification process was car...

Journal: :journal of ultrafine grained and nanostructured materials 0
mohsen hosseinzadeh advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. seyyed ali seyyed ebrahimi advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. shahram raygan advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. seyed morteza masoudpanah school of metallurgy & materials engineering, iran university of science and technology (iust), tehran, iran.

in this study, the removal of cadmium and lead ions from aqueous solution by nanocrystalline magnetite was investigated. the nanocrystalline magnetite was synthesized by mechanochemical activation of hematite in a high energy planetary mill in argon atmosphere for 45 hours. the ability of the synthesized nanocrystalline magnetite for removal of cd(ii) and pb(ii) from aqueous solutions was studi...

2017
T. Schmid C. Veit N. Zuber R. Löw T. Pfau M. Tarana M. Tomza

T. Schmid,1 C. Veit,1 N. Zuber,1 R. Löw,1 T. Pfau,1 M. Tarana,2 and M. Tomza3 15. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany 2J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23 Prague 8, Czech Republic 3Centre of New Technologies, University of Wars...

Journal: :progress in biological sciences 2015
rezan amjadi hedayatollah ghourchian ali akbar moosavi-movahedi aghdas banaie

the ingested nitrates sourced from tap water, food, chemicals and pharmaceuticals areconverted to nitrites in the body surfaces by bacteria and then, the nitrite ions can lead thestructural changing in hemoglobin. in the present work, aggregation of the purified hemoglobinin adult (hba) and in fetus or newborn (hbf) in the presence of nitrite ions were studied.hemoglobin aggregation was perform...

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