نتایج جستجو برای: elemental analysis

تعداد نتایج: 2836297  

Christiana Isimi Joseph Fortunak Martins Emeje, Olobayo Kunle Sabinus Ofoefule Stephen Byrn

This paper is the first multi-scale characterization of the fluidize-dried gum extracted from the fresh fruits of the plant Abelmoschus esculentus. It describes the physical, thermal, sorptional and functional properties of this natural gum. Elemental analysis, scanning electron microscopy (SEM), particle size analysis, X-ray powder diffraction (XPRD), thermo-gravimetric analysis (TGA), differe...

Christiana Isimi Joseph Fortunak Martins Emeje, Olobayo Kunle Sabinus Ofoefule Stephen Byrn

This paper is the first multi-scale characterization of the fluidize-dried gum extracted from the fresh fruits of the plant Abelmoschus esculentus. It describes the physical, thermal, sorptional and functional properties of this natural gum. Elemental analysis, scanning electron microscopy (SEM), particle size analysis, X-ray powder diffraction (XPRD), thermo-gravimetric analysis (TGA), differe...

2013
Wade D. Smith Jessica A. Miller Selina S. Heppell

Differences in the chemical composition of calcified skeletal structures (e.g. shells, otoliths) have proven useful for reconstructing the environmental history of many marine species. However, the extent to which ambient environmental conditions can be inferred from the elemental signatures within the vertebrae of elasmobranchs (sharks, skates, rays) has not been evaluated. To assess the relat...

Purpose: This research was conducted with the aim of studying the essential components of curriculum social education in the elementary period. Methodology: The statistical population of the study included upstream documents such as the Transformation Document and the National Curriculum, both fully analyzed and analyzed. The statistical population and the statistical sample are equal in this r...

Journal: :Journal of environmental sciences 2008
Shouliang Huo Beidou Xi Haichan Yu Liansheng He Shilei Fan Hongliang Liu

The main objective of the study was to investigate the characteristics of dissolved organic matter (DOM) in leachate with different landfill ages through the chemical, spectroscopic, and elemental analysis. Humic acid (HA), fulvic acid (FA), and hydrophilic (HyI) fractions were isolated and purified by the XAD-8 resin combined with the cation exchange resin method. The analytical results of flu...

Journal: :journal of chemical health risks 0
hamidreza boostani college of agriculture and natural resources, shiraz university, darab, iran alireza mahmoodi college of agriculture and natural resources, shiraz university, darab, iran esmaiel farrokhnejad college of agriculture and natural resources, shiraz university, darab, iran

the essential nutrients in the pharmacological plants play a significant role in the remedy of illnesses but, these elements at high levels; can also be dangerous and toxic. the aim of this study was to determine the concentration of macro (mg, ca, p, and k) and micro (cu, zn, fe and mn) essential elements in seven indigenous pharmacological plants growing in fars province, southern iran. they ...

In this research, 1D four-coordinate copper(I) coordination Polymer [Cu(Clba2-1,2-pn)(NCS)]n (1) with thiocyanate anion as bridging ligand, where Clba2-1,2-pn = N,Nʹ-bis(2,4-chlorobenzylidene)propane-1,2-diamine), was synthesized by slow evaporation of solvent at room temperature and characterized by elemental analysis (CHN) and single-cryst...

Journal: :ARQ (Santiago) 2012

Journal: :international journal of nano dimension 0
h. tahermansouri department of chemistry, islamic azad university, ayatollah amoli branch , amol, iran. d. chobfrosh khoei department of science, islamic azad university, shabestar branch , shabestar, iran. m. meskinfam department of chemistry, islamic azad university, lahijan branch, lahijan, iran.

in this paper, the chemical functionalization of carboxylated multi-walled carbon nanotubes (mwnt-cooh) by 1,2-phenylenediamine, have been investigated. mwnt-benzimidazole is obtained through mwnt-amide reaction with pocl3 after 72h, which is confirmed by ft-ir, sem, tga, and elemental analysis. these functionalizations have been chosen due to –nh2 and nhco active sites in mwnt-amide for future...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید