نتایج جستجو برای: al3 and fe3
تعداد نتایج: 16827824 فیلتر نتایج به سال:
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
High-belite sulfoaluminate cement (HBSC) clinker containing brownmillerite was prepared using the industrial raw materials limestone, aluminum tailings, ore waste rock, and anhydrite. The effect of on sintering minerals mechanical performance HBSC investigated thermal analysis, petrographic quantitative X-ray diffraction (QXRD). Results indicated that promoted formation stabilized calcium (C4A3...
Phytochelate is a charged compound that is bonded to the elements. For this purpose, in 2012, in the greenhouse of the University of Bu Ali Sina, The effects of Si2+ and Al3+on total Phytochelate, Phytochelate bond with Si2+ and Al3+and distribution of Si2+ and Al3+ ions in two rice cultivars (Shirudi and Aus) with different resistance to salinity. In this study, 30-day-old seedlings of ric...
بنتونیت عمدتا از گروه اسمکتیت ها تشکیل شده است. اسمکتیت ها لایه 2:1 فیلوسیلیکات بوده که دربرگیرنده صفحات اکتا هدارل شامل یون های al3+، mg2+ یا fe2+، fe3+بین دو صفحه تترا هدرال سیلیکات می باشد. با توجه بهظرفیت تبادل یونیعالی، ظرفیت جذب بالا و خاصیت تورمی خوب، کاربردهای مختلفی در صنایع گوناگون از جمله صنایع شوینده دارد. در بخش اول این پژوهش، کارایی پودرهای شوینده محتوی بنتونیت طبق روش استاند...
Transthyretin (TTR) is a plasma homotetrameric protein that transports thyroxine and retinol. TTR itself, under pathological conditions, dissociates into partially unfolded monomers aggregate form fibrils. Metal ions such as Zn2+, Cu2+, Fe2+, Mn2+ Ca2+ play controversial role in the amyloidogenic pathway. also present cerebrospinal fluid (CSF), where it behaves one of major A?-binding-proteins....
Low-molecular-weight (LMW) molecules of biological origin like microbial glycolipid biosurfactants can self-assemble in water, with a tunable structure by soft chemistry approach (pH, temperature, and ionic strength). The unique molecular glycolipids gives possible access to wide variety aqueous self-assembled structures, although highly unpredictable beforehand. presented here consists glucose...
Substitutions of tetravalent early actinides (Th – Am) and Ce into the ceramic nuclear waste form zirconolite, CaZrTi2O7, have been analysed using hybrid Density Functional Theory in conjunction with Periodic Electrostatic Embedded Cluster Method. on to both Zr4+ Ca2+ sites were modelled, Fe3+ Al3+ used for charge balancing. The mean displacements a central region ions cluster indicated redox b...
This work reports the preparation of amino acid-functionalized CQDs from citric acid by facile hydrothermal synthesis. The prepared N-doped exhibited excellent optical, physical, and chemical properties, differences were observed among six different acids used as nitrogen dopants (Leu, Trp, Lys, Arg, Ala, His). Compared to blank sample (without addition acids), have shown significantly higher q...
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