chiral synthons catalysts and auxiliaries
chiral separations methods and protocols - gerald gubitz
... Y Aboul-Enein and Imran Ali Chiral Separation by HPLC With Pirkle-Type Chiral Stationary Phases Myung Ho Hyun and Yoon Jae Cho Chiral Separation by HPLC Using the Ligand-Exchange Principle ... Proteins Used as Chiral Selectors Protein Trade name of CSP Manufacturer BSA Chiral BSA Resolvosil BSA-7 Resolvosil BSA-7PX Ultron ES-BSA Chiral- HSA Chiral HSA Chiral- AGP Shandon Nagel-Macherey ... and Karlsson, A (1992) Separation of enantiomeric amines and acids using chiral ion-pair chromatography on porous graphitic carbon Chirality 4, 323–332 60 Pettersson, C and Gioeli, C (1993) Chiral...
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chiral separations, methods and protocols
... Proteins Used as Chiral Selectors Protein Trade name of CSP Manufacturer BSA Chiral BSA Resolvosil BSA-7 Resolvosil BSA-7PX Ultron ES-BSA Chiral- HSA Chiral HSA Chiral- AGP Shandon Nagel-Macherey ... C and Karlsson, A (1992) Separation of enantiomeric amines and acids using chiral ion-pair chromatography on porous graphitic carbon Chirality 4, 323332 60 Pettersson, C and Gioeli, C (1993) Chiral ... Rogozhin (71) in the early seventies Chiral recognition is based on the formation of ternary mixed metal complexes between a chiral selector ligand and the analyte ligand The different complex stability...
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Surface functionalized magnetic nanoparticles for separation of chiral biomolecules, pharmaceuticals and endocrine disrupting compounds
... L- and (b) D-Tyr at pH 4, pH 5, pH 5.6 and pH (25°C and ionic strength 0.03M) 126 Figure 5-7 Effect of pH on adsorption: (a) D- and L-Trp, (b) D- and L-Phe, (c) D- and L-Tyr (25°C and ... (a) L- and D-Trp at 25°C, 35°C and 50°C (pH 5.9 and ionic strength 0.03M) 130 Figure 5-9 Adsorption equilibrium isotherms of (a) L- and (b) D-Phe at 25°C, 35°C and 50°C (pH 5.5 and ionic ... of (a) L- and (b) D-Tyr at 25°C, 35°C and 50°C (pH 5.6 and ionic strength 0.03M) 132 Figure 5-11 Effect of temperature on adsorption: (a) D- and L-Trp, (b) D- and L-Phe, (c) D- and L-Tyr...
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Materials for solid base catalysts and oxygen storage
... solid catalysts have many advantages over liquid catalysts, such as reduced corrosion and environmental problems Solid acid and base catalysts have been used in many industrial processes and their ... Zhong Liang, Jeck Fei for their help and encouragement I would also like to thank my parents, brother and my husband for their constant support, understanding and encouragement Lastly, I am indebted ... the demand in the petroleum and petrochemical industries In contrast, fewer efforts have been made to study solid base catalysts Comparing the industrial applications of solid acid and base catalysts, ...
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Clays and oxide minerals as catalysts and nanocatalysts in Fentonlike reactions
... pumice particles (Kitis and Kaplan, 2007), and ironimmobilized aluminates (Muthuvel and Swaminathan, 2008) Clays and oxide minerals, either as such or as supports of iron and other metal species, ... et al., 2008) and iron-oxide minerals (Lin and Gurol, 1998; Kwan and Voelker, 2002, 2003; Wu et al., 2006; Matta et al., 2007; Hanna et al., 2008; Liou and Lu, 2008) However, these catalysts, especially ... 2008) and iron-oxide minerals (Lin and Gurol, 1998; Kwan and Voelker, 2002, 2003; Wu et al., 2006; Matta et al., 2007; Hanna et al., 2008; Liou and Lu, 2008) have been proposed as heterogeneous catalysts...
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Barriers and Catalysts to Sound Financial Management Systems in Small Sized Enterprises
... emphasis on financial reporting and year end accounts and little assistance on management accounting information, systems and business strategy development Barriers and Catalysts to Sound Financial ... the characteristics of the owner/director and business development training and support The study was based on small businesses in central and north Scotland The parameters selected for categorising ... angel demanded appropriate accounting systems and required the firm to change, and recommended who should replace, its external accountant The new accountant ‘has good business sense and takes...
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Tài liệu Báo cáo khoa học: "AUXILIARIES AND CLITICS IN FRENCH UCG GRAMMAR " doc
... m,(fem:sg:p3),lex]:nil:marie:post:_ :and( e, at(e,now), aimer(e,X,marie)) :post :aime) :and( e, at(e,now),aimer(e,X, marie)) :0 :marie (9) AUXILIARIES The following are the main features allowing a correct treatment of auxiliaries ... correct agreement of the past participle and between auxiliary and subject (10) Pierre aime Marie A unique format for perfect tenses with avo/r and ~tre and for passive constructs with ~tre was ... distinction between finite and non-finite forms and between participles used with avoir or ~tre aime Marie sent'[fin,m,(_:sg:p3),Class] :nil/np'[nom,n,(Gel :sg:p3), ] :nil:X:pre:P1 :and( e,at(e,now),aimer(e,X,marie))...
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TUBERCULOSIS - PRACTICAL GUIDE FOR CLINICIANS, NURSES, LABORATORY TECHNICIANS AND MEDICAL AUXILIARIES doc
... treatment and had been registered in another TB centre, and was then referred during treatment 42 The disease TB and HIV TB is a leading cause of HIV-related morbidity and mortality and is one ... national scale using chest X-rays, sputum smear microscopy and cultures) These surveys are, however, demanding and are rarely done All the figures and formulas mentioned above are only valid for countries ... 1988 (before HIV pandemic) Region ARI estimate (%) Sub-Saharan Africa 2.5 Northern and Western Asia 1.5 Asia 2.0 South America 1.5 Central America and the Caribbean 1.5 Caucasus and eastern Europe...
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Oriented silicon nanowires on silicon substrates from oxide assisted growth and gold catalysts
... °C and (b) 700 °C The scale bar is lm (c) TEM image of a SiNW with an Au particle tip and (d) corresponding silicon elemental mapping The scale bar is 50 nm (e) EDX spectrum of the nanowire and ... grew along the Æ1 2æ and Æ1 0æ directions, similar to SiNWs grown by the OAG method without any catalysts As shown in Fig 4a, the side surfaces of the SiNW are made of the {1 1} and {1 0} facets ... the SiNWs and limited the wire diameter The present SiO–Au approach offers certain advantages over the common metal-catalytic VLS method and the OAG method, such as the absence of toxic and flammable...
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carbons and carbon supported catalysts in hydroprocessing
... carbon supported catalysts than on the g-Al2O3 supported catalysts In spite of the good activity and stability of the carbon supported catalysts observed during the laboratory and bench scale ... for the NiMo/AC and NiMo/Al2O3 catalysts, respectively Similarly, using the EXAFS method, Lowers and Prins59 detected Hydroprocessing Catalysts 15 Ni–W–S phase in the NiW/AC catalysts In this ... understanding of the hydroprocessing catalysis These authors prepared a series of Mo, NiMo and CoMo catalysts supported on AC and their counterparts supported on g-Al2O3 The sulfiding of these catalysts...
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metal-organic framworks irmof-8, zif-9, mof-199 and irmof-3 as catalysts for friedel-crafts acylation, knoevenagel, azamichel and pall-knorr reactions
... processes, moisture-insensitive and easy handling solid acid catalysts are desired Furthermore, the use of solid acid catalysts offers easy catalyst recovery and recycling, as well as product ... amounts, toxicity and corrosion of the catalysts, generation of a large amount of waste, and difficult purification of products Moreover, these catalysts are highly moisture sensitive and hence moisture-free ... inorganic zeolites (for example, high stability) and MOFs (for example, high porosity and organic functionality) MOFs are synthesized by mixing organic ligands and metal salts under solvothermal reaction...
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SYNTHESIZE AND INVESTIGATE THE CATALYTIC ACTIVITY OF THREE-WAY CATALYSTS BASED ON MIXED METAL OXIDES FOR THE TREATMENT OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINE
... MnCoCe catalysts before and after aging at 800oC in flow containing 57% steam for 24h (a,d: MnCoCe 1-3-0.75 fresh and aging, b,e: MnCoCe 1-3-.26 fresh and aging, c,f: MnCoCe 1-3-1.88 fresh and aging, ... with and without CO2 81 Figure 3.40 XRD pattern of catalysts based on MnO2, Co3O4, CeO2, BaO and WO3 .82 Nguyen The Tien Synthesize and investigate the catalytic activity of three-way catalysts ... Mn, and Ni Among all metal oxides studied, manganese and cobalt containing catalysts are low cost, environmentally friendly and relatively highly active The catalytic properties of MnOx-based catalysts...
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Báo cáo hóa học: " Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light" pot
... both the conduction band (CB) and the valence band (VB) of WO3 were higher than the CB and VB of TiO2 and fullerene When the hole and electron pairs were also generated and separated on the interface ... WO3, and TiO2 Because of the least band gap of fullerene (1.6 to 1.9 eV), hole and electron pairs were generated and separated on the interface of fullerene easily by visible light irradiation, and ... MZD defined the research theme MZD and WCO designed methods and experiments, and experiments and wrote the paper LZ carried out the laboratory experiments JGC and CYP analyzed the date, interpreted...
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báo cáo hóa học:" Optimizing the thermoelectric performance of zigzag and chiral carbon nanotubes" pdf
... simulations and nonequilibrium Green's function method, we investigate the thermoelectric properties of a series of zigzag and chiral carbon nanotubes which exhibit interesting diameter and chirality ... simulations and NEGF method to study the thermoelectric properties of a serial of CNTs with different diameters and chiralities They are the zigzag (7,0), (8,0), (10,0), (11,0), (13,0), (14,0) and the chiral ... absolute temperature, and κ e and κ p are the electron- and phononderived thermal conductivities, respectively An ideal thermoelectric material requires glass-like thermal transport and crystal-like...
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Chiral Capillary Electrophoresis in Current Pharmaceutical and Biomedical Analysis potx
... phase and the electrolyte bulk phase Chiral recognition is given by modifying partition coefficients of chiral analytes due to different steric effects between chiral analytes and chiral core or chiral ... filled with chiral electrolyte (CE mode), or chiral/ achiral electrolyte with chiral/ achiral stationary phase (CEC mode) Reproduced (left) from [Kim M.S et al., 2005] Figure 2.16 Subsecond chiral separation ... chiral resolution is a prerequisite in chiral research and the optimization of chiral resolution is a starting point within the development of a new chiral method Then, a sample preparation and...
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Báo cáo vật lý: "Decolourisation of Reactive Orange 16 by Activated Carbon and Copper Oxide Catalysts Supported by Activated Carbon" ppsx
... preparation conditions and the modified AC and Cu catalysts are tabulated in Table Table 1: Experimental conditions for the preparation of modified AC and the corresponding Cu catalysts Sample Starting ... Cu-AC/H2O2 and Cu-AC/H2O2/UV Similar trends were observed for Cu-AC and Cu-AC/UV and for Cu-AC/H2O2 and Cu-AC/H2O2/UV, as depicted in Figure A steady decline in the intensity of the 387 nm and 492 ... λmax of 492 nm RESULTS AND DISCUSSION 3.1 XRD and Surface Area and Porosity Analyses The XRD pattern (Fig 2) for the modified AC has a broad diffraction peak at 2θ ≈ 22o and a sharp peak at 2θ...
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Báo cáo y học: "T-cell senescence and contraction of T-cell repertoire diversity – catalysts of autoimmunity and chronic inflammation" pdf
... expression of CD28 and preferential up-regulation of its ligands B7-1 (CD80) and B7-2 (CD86) on T cells Clin Exp Immunol 1998, 114:113-118 Markovic-Plese S, Cortese I, Wandinger KP, McFarland HF, Martin ... 63919, R01 AG15043, and R01 AR41974) and by the Mayo Foundation The authors thank James W Fulbright for assistance in manuscript preparation and for preparing the graphics and Linda H Arneson ... homeostasis and competition J Exp Med 2003, 197: 451-460 Goronzy JJ, Weyand CM: T cell homeostasis and autoreactivity in rheumatoid arthritis In Rheumatoid Arthritis Edited by Goronzy JJ, Weyand CM...
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