نتایج جستجو برای: x ray diffractometry

تعداد نتایج: 664824  

Journal: :iranian journal of pharmaceutical sciences 0
vipul p patel shri b. m. shah college of pharmaceutical education and research, modasa, gujarat, india natvarlal m patel shri b. m. shah college of pharmaceutical education and research, modasa, gujarat, india

glipizide has been found to form inclusion complexes with β-cyclodextrin (β-cd) in solution and in solid state. the present study was undertaken to determine a suitable method for scaling up glipizide-β-cd inclusion complex formation and to evaluate the effect of some parameters on the efficiency of complexation. the solid inclusion complexes of glipizide and β-cd were prepared at a molar ratio...

Journal: :Molecules 2009
Keyong Xu Benguo Liu Yuxiang Ma Jiquan Du Guanglei Li Han Gao Yuan Zhang Zhengxiang Ning

A luteolin and phospholipid complex was prepared to improve the lipophilic properties of luteolin. The physicochemical properties of the complex were analyzed by ultraviolet-visible spectrometry (UV), infrared spectrometry (IR), X-ray diffractometry (XRD) and differential scanning calorimetry (DSC). The results showed that luteolin and phospholipid in the complex were joined by non-covalent-bon...

1999
J. Domagaøa

The structure of AlGaAs, MnMgTe/CdTe and CdTe epitaxial layers deposited on GaAs substrates was studied by high-resolution X-ray diffractometry. The reciprocal lattice mapping and the rocking curve techniques were used for the samples aligned with either [110] or [ 110] direction perpendicular to the diffraction plane. Our results show that strains in the investigated samples were anisotropic. ...

Journal: :Dalton transactions 2008
Amitabha Mitra Yuzhong Wang Sean Parkin David Atwood

New halogen-containing tetrametallic aluminium alkoxides of formula [Al{(mu-OEt)2AlMeCl}3] ( 2-cis; 2-trans), and [Al{(mu-OEt)2AlBr2}3] ( 4), have been synthesized by combining Al(OEt)3 and Me2AlCl (for 2) or EtAlBr2 (for 4). They were fully characterized by (1H, 27Al) NMR, IR, mp, elemental analysis, and single-crystal X-ray diffractometry. The chloride analogue of 4, [Al{(mu-OEt)2AlCl2}3] ( 3...

1997
M. Birsan L. Anthony

Supersaturated Fe-Pd solid solutions were prepared by mechanical alloying. X-ray diffractometry showed that the as-milled alloys were bcc from 0–26 at. % Pd. Saturation magnetization measurements and Mössbauer spectrometry measurements were performed on these powders. Consistent interpretations of both sets of measurements were possible if the magnetic moment at the Pd atom was 0.35mB and const...

1999
M.-A Nicolet

Effects of ion implantation of 320 keV “Si at room temperature in pseudomorphic metastable Ge$i,-, (x-0.04, 0.09, 0.13) layers 170 nm thick grown on Si( 100) wafers were characterized by x-ray double-crystal diffractometry and MeV 4He channeling spectrometry. The damage induced by implantation produces additional compressive strain in the Ge$i, _ x layers, superimposed on the intrinsic compress...

Journal: :iranian journal of catalysis 2012
seyed javad ahmadi morteza hosseinpour mohammad outokesh

in our current study, supercritical water impregnation (scwi) was introduced as a unique catalyst preparation method by employing the high diffusivity property of supercritical water. the method allows nano-particles to place on support surfaces in extremely dispersed conditions. the silica-based nanocatalyst granules for this purpose were prepared by initial impregnation of highly porous silic...

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