oxidation reduction reactions of chlorine compounds

Bài giảng hoá phân tích oxidation–reduction reactions

Bài giảng hoá phân tích oxidation–reduction reactions

... Oxidation Reduction Reactions Experiment 27 Report Sheet Oxidation Reduction Reactions Date Lab Sec Name Desk No A Oxidation Reduction Reactions 1 Oxidation of ... (right) Experimental Procedure A Oxidation Reduction Reactions Oxidation of copper In three separate small test tubes add approximately mL of M HCl, mL of M HNO3, and mL of conc HNO3 (Caution: Avoid ... A Addition of Solution B Chlorine bleach and drops of M HCl (the active ingredient in chlorine bleach is ClOϪ) Drops of 0.1 M Fe(NH4)2SO4 Chlorine bleach and drops of M HCl Add drop of starch...

Ngày tải lên: 02/06/2016, 10:16

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DETERMINANTS OF POVERTY REDUCTION POTENTIAL OF LAND IN RURAL VIETNAM

DETERMINANTS OF POVERTY REDUCTION POTENTIAL OF LAND IN RURAL VIETNAM

... Number of children Number of children ≤ Number of children 2-5 Number of children ≥ Occupation of the household head (*) White collar Sales Agriculture Production Other/no work Education of the ... period of French colonial rule, the conflict with America and the policies of the Communist Party government after re-unification of Vietnam in 1975 After a period of collectivization of agricultural ... appropriate length of tenure, ceiling levels for land holdings and restrictions on the transfer and use of land I.2 The process of land allocation Approximately 80 percent of the populations of some 80...

Ngày tải lên: 12/04/2013, 16:07

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ANALYSIS OF HYDROXYL RADICAL GENERATION IN ADVANCED OXIDATION PROCESS -EFFECT OF HUMIC SUBSTANCES DURING OZONATION

ANALYSIS OF HYDROXYL RADICAL GENERATION IN ADVANCED OXIDATION PROCESS -EFFECT OF HUMIC SUBSTANCES DURING OZONATION

... the amounts of DMPO-OH were analyzed as a function of the concentration of ozone and humic acids The amount of DMPO-OH depended both of the amounts of ozone and humic acid The origin of humic acid ... spectrometer operated with homemade software The condition of ESR measurement was 10 mW of microwave (9.44 GHz) and 0.20 mT of field modulation (100 kHz) Mathematical analysis of OH radical generation enhanced ... after mixing at 20 µM of aqueous ozone (Fig 3a), although the amount of DMPO-OH reached maximum level within at 40 µM of ozone (Fig 3b) At 60 µM of aqueous ozone, the amount of DMPO-OH decreased...

Ngày tải lên: 05/09/2013, 08:40

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Dictionary of food compounds additives, flavors, and ingredients yannai s 2004

Dictionary of food compounds additives, flavors, and ingredients yannai s 2004

... PRESENTATION are of six types The selection of compounds for DFC is broad Included Structural headings (WA) classify naturally occurring are all compounds or group of compounds of interest or food ... indication of crystal form and of recrystallisation solvent is often given but these are imprecise items of data; most compounds can be crystallised from several solvent systems and the crystal form often ... consists of a letter of the alphabet followed by a number, e.g., A-124 All index entries THE TYPE OF COMPOUND INDEX refer to the DFC number This is a most important feature of DFC Every compound of...

Ngày tải lên: 16/09/2013, 21:58

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Tài liệu ADSORPTION OF ORGANIC COMPOUNDS doc

Tài liệu ADSORPTION OF ORGANIC COMPOUNDS doc

... presence of nonadsorbable compounds, the biodegradation of compounds in a biologically active column, slow adsorption of a fraction of the molecules present, and the critical depth of the column ... ADSORPTION OF ORGANIC COMPOUNDS 13.17 FIGURE 13.12 Effect of biodegradation and the presence of nonadsorbable compounds on the shapes of breakthrough curves steam and CO2 at temperatures of 800 to ... heterogeneous mixture of compounds The small fraction of strongly adsorbable compounds is often overlooked when determining an isotherm because of the analytical difficulty of obtaining good data...

Ngày tải lên: 14/02/2014, 03:20

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Tài liệu NOMENCLATURE OF ORGANIC COMPOUNDS docx

Tài liệu NOMENCLATURE OF ORGANIC COMPOUNDS docx

... chemical and physical properties of another class of compounds A Halogen Derivatives of Hydrocarbons Functional Group: - X (F, Cl, Br, I) General Formula: R-X Naming of Halides Halogens attached ... the parent chain Name the compound in order of: number of carbon atom-alkyl group attached(number of carbon atom-alkyl group attached- etc ) name of parent compound If there are several different ... alkanes are straight chained compounds, as shown in the previous table, they can have side chains or branches These variations of compounds which have the same number of carbon and hydrogen atoms,...

Ngày tải lên: 14/02/2014, 08:20

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Tài liệu Báo cáo khóa học: Quantitative analysis, using MALDI-TOF mass spectrometry, of the N-terminal hydrolysis and cyclization reactions of the activation 2 process of onconase pdf

Tài liệu Báo cáo khóa học: Quantitative analysis, using MALDI-TOF mass spectrometry, of the N-terminal hydrolysis and cyclization reactions of the activation 2 process of onconase pdf

... using the purified recombinant protein, the conversion of reagents and products of the exopeptidasecatalyzed hydrolysis of Met1 and cyclization of Gln1 to pyroglutamyl were monitored at different ... of saturated sinapinic acid in the same solvent of the matrix, and 0.5 lL of the mixture was immediately applied to a sample probe spot Protein expression Cyclization reaction as a function of ... and expressing it as the fraction of hydrolyzed (Met1)-ONC (M23L) Figure shows the results of the characterization of the hydrolysis reaction as a function of guanidinium chloride concentration...

Ngày tải lên: 19/02/2014, 12:20

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Báo cáo khoa học: Functional dissection of Escherichia coli phosphotransacetylase structural domains and analysis of key compounds involved in activity regulation potx

Báo cáo khoa học: Functional dissection of Escherichia coli phosphotransacetylase structural domains and analysis of key compounds involved in activity regulation potx

... Activation of the acetyl phosphate synthesis activity of E coli Pta by different concentrations of pyruvate and PEP Results are presented as percentage of activity in the presence of PEP or pyruvate ... high acetate concentration (B) Regulation of the forward and reverse Pta reactions Pta catalyzes both the synthesis and degradation of acetyl-CoA These two reactions are differentially regulated ... in part, the inhibitory effects of both NADH and ATP (Fig 5A) In the case of pyruvate, although partial reversal of NADH inhibition was observed, total reversal of ATP inhibition was found (Fig...

Ngày tải lên: 06/03/2014, 11:20

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Báo cáo khoa học: Reactions of gold(III) complexes with serum albumin docx

Báo cáo khoa học: Reactions of gold(III) complexes with serum albumin docx

... addition of a solution of 1,2-ethylendiamine monohydrate in ether to a solution of HAuCl4 in ether; the yellow precipitate was dissolved in water giving an orange solution A white precipitate of [Au(en)2]Cl3 ... elemental analysis; in all cases, the purity of the compounds was higher than 98% Further evidence for the correct identification of the obtained compounds is provided by electronic spectra and ... stoichiometric excess of cyanide The UV-Vis spectra were recorded before and immediately after the addition of a concentrated solution of sodium cyanide Reaction with imidazole The interaction of [Au(bipyc-H)(OH)][PF6]...

Ngày tải lên: 07/03/2014, 21:20

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Effect of chlorine on adsorption ultrafiltration treatment for removing natural organic matter in drink2

Effect of chlorine on adsorption ultrafiltration treatment for removing natural organic matter in drink2

... functionalities Analyses of the effects of chlorination of raw water during adsorption and UF could also establish some correlation of NOM removal and membrane permeability with alteration of the physicochemical ... concentration of chlorine (11 mg/L as Cl2 ) was applied in order to expedite the chlorination reactions within a short period of time The chlorination steps lasted 30 and then residual free chlorine ... adsorbent doses In particular, the influence of prechlorination on IOP/UF was evaluated in terms of NOM removal and membrane permeability, since chlorine was often dosed into raw water to control microbial...

Ngày tải lên: 16/03/2014, 00:07

7 473 1
Báo cáo khoa học: Protection of chylomicron remnants from oxidation by incorporation of probucol into the particles enhances their uptake by human macrophages and increases lipid accumulation in the cells ppt

Báo cáo khoa học: Protection of chylomicron remnants from oxidation by incorporation of probucol into the particles enhances their uptake by human macrophages and increases lipid accumulation in the cells ppt

... change the rate of formation of cholesteryl ester in THP-1 macrophages (Table 4) In addition, there was no significant effect on the expression of mRNA for ACAT1, the isoform of the enzyme found ... Proteins were harvested from the plates, after extraction of the lipids, by the addition of mL of NaOH (1 M) mRNA analysis The relative abundance of transcripts for the LDLr, LRP, SR-A, SR-B1, CD36, ... Exposure of THP-1 macrophages to either CRLPs or pCRLPs caused a considerable increase in the total lipid accumulated in the cells after 48 h (Table 3) Comparison of the effects of the two types of...

Ngày tải lên: 16/03/2014, 16:20

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Báo cáo khoa học: Brain succinic semialdehyde dehydrogenase Reactions of sulfhydryl residues connected with catalytic activity pdf

Báo cáo khoa học: Brain succinic semialdehyde dehydrogenase Reactions of sulfhydryl residues connected with catalytic activity pdf

... deletions in the genomic level would be causative of SSADH deficiency [11,12] Despite the importance of SSADH in the metabolism of GABA, the structural studies of the enzyme have not yet been well investigated ... for the inactivation of DABIA was 168 M)1Æmin)1, as determined from the slope of this plot In an effort to demonstrate that DABIA is bound to sulfhydryl groups of SSADH, lM of SSADH was incubated ... extinction coefficient of 29 000 M)1Æcm)1 at 436 nm DABIA gave overall incorporation values of about 7.5 mol per enzyme tetramer, indicating that mols of sulfhydryl groups of SSADH were masked...

Ngày tải lên: 16/03/2014, 18:20

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Báo cáo khoa học: Light-induced reactions of Escherichia coli DNA photolyase monitored by Fourier transform infrared spectroscopy pot

Báo cáo khoa học: Light-induced reactions of Escherichia coli DNA photolyase monitored by Fourier transform infrared spectroscopy pot

... photoreduction of the flavin semiquinone radical 1857 FT-IR on DNA photolyase Fig FT-IR difference spectra of DNA photolyase (A, A¢) Photoreduction of DNA photolyase (two different batches of protein) ... Photoreduction of [U-15N]-DNA photolyase (C) Photoreduction of DNA photolyase in D2O-containing buffer; double differences are shown in lanes D–F (D) Subtraction of A¢ from A (E) Subtraction of ... environmental change of carbonyl groups during photoreduction is excluded Photoactivation of DNA photolyase Photodamage of DNA Red-light irradiation selectively induced the one-electron reduction of the blue...

Ngày tải lên: 16/03/2014, 18:20

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Báo cáo khoa học: Adventitious reactions of alkene monooxygenase reveal common reaction pathways and component interactions among bacterial hydrocarbon oxygenases ppt

Báo cáo khoa học: Adventitious reactions of alkene monooxygenase reveal common reaction pathways and component interactions among bacterial hydrocarbon oxygenases ppt

... growth of flask cultures of R rhodochrous B-276 in the presence of a range of alkynes (Fig 1) A fivefold molar excess FEBS Journal 272 (2005) 2661–2669 ª 2005 FEBS W L J Fosdike et al Adventitious reactions ... activity was measured as a function of the time between the start of the reaction (addition of NADH) and removal of the alkyne by flushing with nitrogen First-order decay of enzyme activity was observed, ... underestimated The positive deviation of the latest data points from the extrapolated linear 2663 Adventitious reactions of alkene monooxygenase Fig Kinetics of inactivation of AMO by (A) propyne and (B)...

Ngày tải lên: 16/03/2014, 19:20

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DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf

DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf

... base, and generating a list of tentatively identified compounds with their retention times and scan numbers The software must also allow integration of the ion abundance of any specific ion between ... leach organic compounds into the eluting solvent One liter of water should pass through the cartridge in about two hours with the assistance of a slight vacuum of about 13 cm (5 in.) of mercury ... acetone at a concentration of 500 µg/mL of each This solution is used in the preparation of the calibration solutions Dilute a portion of this solution by 10 to a concentration of 50 µg/mL and use this...

Ngày tải lên: 22/03/2014, 14:20

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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx

PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx

... properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pesticides and Toxic Substances) and Regional Offices Also, SPARC has been used ... interactions of the P with the two states δrespKa describes the change in the delocalization of π electrons of the two states due to P This delocalization of π electrons is assumed to be into or out of ... number of molecular structures The values of these latter parameters, in most instances, must be derived from measurements or from the expert judgment of specialists in that particular area of chemistry...

Ngày tải lên: 22/03/2014, 14:20

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Báo cáo Y học: Production and chemiluminescent free radical reactions of glyoxal in lipid peroxidation of linoleic acid by the ligninolytic enzyme, manganese peroxidase pot

Báo cáo Y học: Production and chemiluminescent free radical reactions of glyoxal in lipid peroxidation of linoleic acid by the ligninolytic enzyme, manganese peroxidase pot

... high reduction potential of CO2† – , the radical catalyzes reduction of Fe(III) [12] and reductive dehalogenation of recalcitrant aromatic halides [31] O2† – catalyzes oxidation of Mn(II) and reduction ... linoleic Fig Mass chromatograms of PFBO derivatives of products of lipid peroxidation by C subvermipora MnP and soybean lipoxygenase at m/z 181 (A) Products of the oxidation of linoleic acid by MnP in ... Mn(III) –lactate, no shoulder peaks of the dimol emission of singlet oxygen was observed DISCUSSION Formation and oxidation of glyoxal in lipid peroxidation of linoleic acid by MnP It has been...

Ngày tải lên: 24/03/2014, 04:21

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Báo cáo khoa học: Interaction of selenium compounds with zinc finger proteins involved in DNA repair pdf

Báo cáo khoa học: Interaction of selenium compounds with zinc finger proteins involved in DNA repair pdf

... where N ¼ the number of strand breaks per molecule of PM2, I ¼ the percentage of supercoiled PM2 DNA, and II ¼ the percentage of open circular PM2 DNA The overall number of strand breaks per ... [34] Determination of the metal content of MT by complete zinc release after oxidation with 10 mM H2O2 and ICP-MS revealed 6.4 zinc atoms per molecule of MT and negligible amounts of cadmium and ... concentrations of the respective selenium compounds Furthermore, no inhibition was observed with up to mM methionine Effect of selenium compounds on XPA-DNA binding Results Effect of selenium and...

Ngày tải lên: 30/03/2014, 15:20

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physical properties of chemical compounds

physical properties of chemical compounds

... 10.1021/ba-1955-0015.ch001 Of Chemical Compounds R R Dreisbach The Dow Chemical Co., Midland, Mich Definition of the Symbols and Parameters Used, with the Methods of Calculating the Parameters ... Density at 20° C., etc., g./ml a, b: Constants of Law of Rectilinear Diameters, dv + dL = a + bt d = density of the vapor, g./ml.; dL = density of the liquid, g./ml ng', etc.: Refractive index ... = I/Vg Inserting these values of vapor density we then solve the two equations for the values of A'· and B /• as in the case of A· and B· Ac, Bc, Cc: Constants of the Antoine vapor pressure equation...

Ngày tải lên: 01/04/2014, 10:10

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