Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: May 2014
Authors: Fang Xu Lei
The authors found that the shape of GNPs would be modified to form twin-linked or more-connected structures by addition of one of deposition cycles, concentration, and deposition temperature, or decreasing the deposition potential during the electrolysis.
Pingarron: Analytical and Bioanalytical Chemistry, Vol. 382 (2005) No.4, p.884
Compton: Analytical and Bioanalytical Chemistry, Vol. 384 (2006) No.3, p.601
Oyama: Journal of Electroanalytical Chemistry, Vol. 577 (2005) No.2, p.273.
Pingarron: Analytical and Bioanalytical Chemistry, Vol. 382 (2005) No.4, p.884
Compton: Analytical and Bioanalytical Chemistry, Vol. 384 (2006) No.3, p.601
Oyama: Journal of Electroanalytical Chemistry, Vol. 577 (2005) No.2, p.273.
Online since: September 2013
Authors: Hai Yan Wu, Yan Song, Xiao Hong Yang
Extraction and analysis of the chemical constituents of
volatile oil from Albizia bark
SONG-Yan1,WU-Haiyan*2,YANG-Xiaohong1,2
1Science and Technology of Hubei University for Nationalities, Enshi, Hubei, China,445000
2School of Chemistry and Environmental Engineering,HuBei University for Nationlities,Enshi, HuBei China,445000
Email:es569@163.com
Key word:Albizia Bark; Volatile oil; Chemical composition; GC-MS;
Abstract: Objective: To study the chemical constituents of volatile Albizia bark.
Synthesis and fungicidal activity of [J]. in organic chemistry, a novel structure of benzothiazole sulfide compounds 2010, 30 (10): 1567-1573
Chemistry and industry of forest products,2001,(21)1:75-79
Synthesis and fungicidal activity of [J]. in organic chemistry, a novel structure of benzothiazole sulfide compounds 2010, 30 (10): 1567-1573
Chemistry and industry of forest products,2001,(21)1:75-79
Online since: August 2019
Authors: Larisa Yuryevna Zakirova, Nelly N. Shishkina, Ya.D. Samuilov
This leads to strengthening of metal-rubber system [8]:
Conclusion
2-isocyanate-4-phenylcarbamidmethylbenzene was synthesized, structure was confirmed by methods of IR-spectroscopy and elemental analysis.
Мechanism and theories of rubber adhesion to steel tire cords - an overview, Rubber Chemistry and Technology. 57 (3) (1984) 421-456
Effect of compound ingredients on adhesion between rubber and brass-plated steel cord, Rubber Chemistry and Technology. 78 (2) (2005) 175-187
Comprehensive organic chemistry, V.3, Himiya, Moscow, 1982.
Мechanism and theories of rubber adhesion to steel tire cords - an overview, Rubber Chemistry and Technology. 57 (3) (1984) 421-456
Effect of compound ingredients on adhesion between rubber and brass-plated steel cord, Rubber Chemistry and Technology. 78 (2) (2005) 175-187
Comprehensive organic chemistry, V.3, Himiya, Moscow, 1982.
Online since: February 2011
Authors: Ming Yang, Yu Jing Nie
The 1HNMR spectra of 1 shows both one singlet signal for the terminal cyclopentadienyl ligands, two triplets according to the A2B2 system of the bridging C5H4 groups, two triplets for the methylene group units SCH2 and CpCH2 in the expected ranges, thus proofing the proposed structure as well as the elemental analysis.
Kaminsky: Journal of Polymer Science Part A: Polymer Chemistry Vol.42(2004), p.3911-3921
Kim, et al.: Journal of Polymer Science Part A: Polymer Chemistry Vol.35(1997), p.3717-3728
Jung, et al.: Journal of Organometallic Chemistry Vol.580(1999), p.90-97.
Kaminsky: Journal of Polymer Science Part A: Polymer Chemistry Vol.42(2004), p.3911-3921
Kim, et al.: Journal of Polymer Science Part A: Polymer Chemistry Vol.35(1997), p.3717-3728
Jung, et al.: Journal of Organometallic Chemistry Vol.580(1999), p.90-97.
Online since: October 2012
Authors: Qing Lin Hou, Rui Ming Yin, Fu Bao Ji, Li Jing, Lin Zhang Chen
Studied calcium ions on Zeta potential of quartz surface and flotation behavior through flotation experiment, Zeta potential measurement, infrared spectroscopy and solution chemistry of calcium calculation.
This articles systematic studied the impact mechanism of calcium ions on Zeta potential of quartz surface and the capacity of collecting quartz through flotation experiment, Zeta potential measurement, infrared spectroscopy and solution chemistry of calcium calculation. 2.
At pH=10, the recovery rate of the quartz began to increase sharply, at pH=12, the recovery rate of the quartz is corresponding to the maximum, and then recovery rate began to decrease as the pH continues to increase. 1-deionized water 2-calcium ions The concentration of collector is 10-3mol/L The concentration of calcium ions is 0.5×10-3mol/L Fig. 1 Flotation recovery of quartz as function of pH 3.2 Adsorption mechanism Quartz is the frame structure of silicate, each silicon is surrounded by four oxygen in the structure, constitute basic structural units of the [SiO4] tetrahedra[13]. 1-deionized water 2-calcium ions Fig. 2 Zeta potential of quartz as function of pH Fig. 2 shows the Zeta potential of quartz as a function of pH. when pH>2, ZETA potential of the quartz surface show negative charge, is not conducive to the adsorption of the anionic collector dodecyl sulphate.
This articles systematic studied the impact mechanism of calcium ions on Zeta potential of quartz surface and the capacity of collecting quartz through flotation experiment, Zeta potential measurement, infrared spectroscopy and solution chemistry of calcium calculation. 2.
At pH=10, the recovery rate of the quartz began to increase sharply, at pH=12, the recovery rate of the quartz is corresponding to the maximum, and then recovery rate began to decrease as the pH continues to increase. 1-deionized water 2-calcium ions The concentration of collector is 10-3mol/L The concentration of calcium ions is 0.5×10-3mol/L Fig. 1 Flotation recovery of quartz as function of pH 3.2 Adsorption mechanism Quartz is the frame structure of silicate, each silicon is surrounded by four oxygen in the structure, constitute basic structural units of the [SiO4] tetrahedra[13]. 1-deionized water 2-calcium ions Fig. 2 Zeta potential of quartz as function of pH Fig. 2 shows the Zeta potential of quartz as a function of pH. when pH>2, ZETA potential of the quartz surface show negative charge, is not conducive to the adsorption of the anionic collector dodecyl sulphate.
Online since: March 2008
Authors: Vicki L. Van Blaricum, Vincent F. Hock
The commercial multi-parameter water chemistry sensor used in this project is depicted in Figure 2.
Multi-parameter water chemistry sensor. 4.
Field data obtained from water chemistry sensor at remote location.
Field data obtained from water chemistry sensor on untreated water line at WTP.
Field data obtained from water chemistry sensor on treated water line at WTP.
Multi-parameter water chemistry sensor. 4.
Field data obtained from water chemistry sensor at remote location.
Field data obtained from water chemistry sensor on untreated water line at WTP.
Field data obtained from water chemistry sensor on treated water line at WTP.
Online since: November 2016
Authors: Emmanuel Iheanyichukwu Iwuoha, Samantha F. Douman, Rachel Fanelwa Ajayi, Usisipho Feleni, Nomaphelo Ntshongontshi, Anovuyo Jonnas, Ezo Nxusani, Lindsay Wilson, Keagan Pokpas
Structure of Isonaizid
Materials and Methods
Chemicals and Reagents.
As seen in (Fig. 5A), the polymeric material in the HR-TEM image gives no information on the orientation or structure of PANSA.
Iwuoha, Electrochemical impedimetry of electrodeposited poly (propylene imine) dendrimer monolayer, Journal of Electroanalytical Chemistry. 638 (2010) 287–292
Meneely, Structures of Human Cytochrome P-450-2E1, Journal of Biological Chemistry. 48 (2008) 33698-33701
Journal of Electroanalytical Chemistry. 100 (1979) 263-270
As seen in (Fig. 5A), the polymeric material in the HR-TEM image gives no information on the orientation or structure of PANSA.
Iwuoha, Electrochemical impedimetry of electrodeposited poly (propylene imine) dendrimer monolayer, Journal of Electroanalytical Chemistry. 638 (2010) 287–292
Meneely, Structures of Human Cytochrome P-450-2E1, Journal of Biological Chemistry. 48 (2008) 33698-33701
Journal of Electroanalytical Chemistry. 100 (1979) 263-270
Online since: September 2013
Authors: Evgeniy Vorobiev, Victor V. Petrov, Evgenya Shishlianikova
Properties of a polymeric material are determined not only by its composition, but by methods of polymerization, mutual arrangement of chain units and volume structure, as well, i.e. by its structure at the supramolecular level.
Still, properties of a polymeric material are determined not only by its composition, but by methods of polymerization, mutual arrangement of chain units and volume structure, as well, i.e. by its structure at the supramolecular level.
Properties of various pyrrole-based compounds (e.g. trifluoropolypyrroles and N-substituted polypyrroles) [4] are the subject of considerable investigation conducted by quantum chemistry methods.
At this stage, we attempted to identify the most energy-advantageous structures and compare the results thus obtained with the data presented in literature.
Quantum chemistry investigation. – Izvestiya Vuzov.
Still, properties of a polymeric material are determined not only by its composition, but by methods of polymerization, mutual arrangement of chain units and volume structure, as well, i.e. by its structure at the supramolecular level.
Properties of various pyrrole-based compounds (e.g. trifluoropolypyrroles and N-substituted polypyrroles) [4] are the subject of considerable investigation conducted by quantum chemistry methods.
At this stage, we attempted to identify the most energy-advantageous structures and compare the results thus obtained with the data presented in literature.
Quantum chemistry investigation. – Izvestiya Vuzov.
Online since: October 2007
Authors: Han Zhou, Tong Xiang Fan, Di Zhang
A possible formation mechanism is proposed which has an
effect on the bimodal pore structure of the products with pores in the mesoporous range.
Furthermore, this bio-templating method will be extended to the preparation of various hollow structures since bacterium of various shapes such as cocci, bacillus and spirillum acting as templates can lead to the formation of corresponding hollow structures (e.g. hollow nanorods, nanotubes, nanohelixs, nanocables, diplo-spheres, chain spheres and other kinds of 3D nanostructures) in a relative simple way to general chemistry methods and this would open up possibilities for extensive study of the physical and chemical properties of these hollow structures and extend their application potentials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.
The morphology and structure of the samples were further investigated by field emission scanning electron microscopy.
After calcination the hollow structure was nevertheless retained, and there was no collapse in the spherical symmetry.
Moreover, bacterium of various shapes such as cocci, bacillus and spirillum acting as templates can lead to the formation of various porous hollow structures (e.g. hollow nanotubes, nanohelixs, diplo-spheres, chain spheres and other kinds of 3D nanostructures) in a relative simple way to general chemistry methods and this would open up possibilities for extensive study of the physical and chemical properties of these hollow structures and extend their application potentials.
Furthermore, this bio-templating method will be extended to the preparation of various hollow structures since bacterium of various shapes such as cocci, bacillus and spirillum acting as templates can lead to the formation of corresponding hollow structures (e.g. hollow nanorods, nanotubes, nanohelixs, nanocables, diplo-spheres, chain spheres and other kinds of 3D nanostructures) in a relative simple way to general chemistry methods and this would open up possibilities for extensive study of the physical and chemical properties of these hollow structures and extend their application potentials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.
The morphology and structure of the samples were further investigated by field emission scanning electron microscopy.
After calcination the hollow structure was nevertheless retained, and there was no collapse in the spherical symmetry.
Moreover, bacterium of various shapes such as cocci, bacillus and spirillum acting as templates can lead to the formation of various porous hollow structures (e.g. hollow nanotubes, nanohelixs, diplo-spheres, chain spheres and other kinds of 3D nanostructures) in a relative simple way to general chemistry methods and this would open up possibilities for extensive study of the physical and chemical properties of these hollow structures and extend their application potentials.