Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Ebrahim Niknam"'
Autor:
Ardeshir Shokrollahi, Somayeh Joybar, Hoda Elias Haghighi, Khodabakhsh Niknam, Ebrahim Niknam
Publikováno v:
Química Nova, Vol 36, Iss 3, Pp 368-374 (2013)
A simple, sensitive and selective cloud point extraction procedure is described for the preconcentration and atomic absorption spectrometric determination of Zn2+ and Cd2+ ions in water and biological samples, after complexation with 3,3',3",3'"-tetr
Externí odkaz:
https://doaj.org/article/b4839c4e06d94a7ca136552c5fa88f96
Publikováno v:
E-Journal of Chemistry, Vol 8, Iss 1, Pp 435-442 (2011)
Bis((1H-benzo[d]imidazol-2yl)methyl)sulfane (BHIS) was used as a complexing agent in cloud point extraction for the first time and applied for selective pre-concentration of trace amounts of silver. The method is based on the extraction of silver at
Externí odkaz:
https://doaj.org/article/194e6f17669c402d9a77950211ac3133
Autor:
Mehrorang Ghaedi, Ebrahim Niknam
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 24, Iss 1, Pp 11-20 (2010)
A selective, sensitive and efficient method for preconcentration of trace amounts of Cu(II), Fe(II) and Zn(II) ions based on the uptake of their complexes with 3-((indolin-3-yl)(phenyl)methyl)indoline (IYPMI) loaded on Triton X-100 coated poly vinyl
Externí odkaz:
https://doaj.org/article/06d1c9d3fdf44ec5b06db307ec6b66b0
Publikováno v:
Geomechanics and Geoengineering. 17:106-117
Investigating the creep of expansive unsaturated soils is necessary to simulate the long-term deformations that can cause structural failures. Hence, this paper presents a laboratory investigation ...
Autor:
Ebrahim Niknam, Shahab Khormali
Publikováno v:
2019 20th International Scientific Conference on Electric Power Engineering (EPE).
This paper presents operation cost minimization of a domestic grid-connected microgrid under a time of use pricing scheme. Modeling, simulation and optimization of the proposed hybrid microgrid system including traditional and renewable power sources
Autor:
Hamid Reza Farmani, Pedram Nasehi, Ebrahim Niknam, FarvehRaoufi, Khodabakhsh Niknam, Saideh Bagheri
Publikováno v:
Oriental Journal of Chemistry. 32:575-584
A sensitive and selective solid phase extraction procedure for the determination of traces of Cd(II), Zn(II) and Ag(I) ions has been developed. An alumina-sodium dodecyl sulfate (SDS) coated on with 2,3 Di Hydro 2,3 paratolylQinazoline (1 H)- 4 one (
Publikováno v:
Chinese Chemical Letters. 22:69-72
2,3-Dihydroquinazolin-4(1H)-one derivatives are synthesized via a one-pot, three component reaction of isatoic anhydride and an aromatic aldehyde with ammonium acetate or primary amine catalyzed by silica-bonded N-propylsulfamic acid (SBNPSA) in refl
Publikováno v:
E-Journal of Chemistry, Vol 8, Iss 1, Pp 435-442 (2011)
Bis((1H-benzo[d]imidazol-2yl)methyl)sulfane (BHIS) was used as a complexing agent in cloud point extraction for the first time and applied for selective pre-concentration of trace amounts of silver. The method is based on the extraction of silver at
Publikováno v:
Arabian Journal for Science and Engineering. 36:47-56
A method of separation and preconcentration for the determination of Zn, Cu, and Mn in natural water was described and real samples studied using flame atomic absorption spectrometry. The method is based on the adsorption of Mn2+, Cu2+ and Zn2+onto 3
Autor:
Mehrorang Ghaedi, K. Taheri, Ebrahim Niknam, K. Mortazavi, Khodabakhsh Niknam, Mustafa Soylak
Publikováno v:
Scopus-Elsevier
A method for the simultaneous preconcentration of Cu 2+ , Zn 2+ and Fe 3+ ions, in some food samples has been reported. The method is based on the adsorption of 3-(1-(1-H-indol-3-yl)-3-phenylallyl)-1H-indole (IPAI) loaded on Duolite XAD 761. The meta