classes of organic compounds with unpleasant odors
Tài liệu ADSORPTION OF ORGANIC COMPOUNDS doc
... bCe1ᎏnADSORPTION OF ORGANIC COMPOUNDS 13.3CHAPTER 13ADSORPTION OF ORGANIC COMPOUNDS Vernon L. Snoeyink, Ph.D.Ivan Racheff Professor of Environmental EngineeringDepartment of Civil and Environmental ... (DCP) was introduced to the influent of a columnADSORPTION OF ORGANIC COMPOUNDS 13.7FIGURE 13.4 Nonlinear isotherm for a het-erogeneous mixture of organic compounds. (Source: Randtke and Snoeyink, ... adsorbable compounds can be removed with small doses of adsorbent andyield large values of qe. In contrast, the weakly adsorbable compounds can only beremoved with large doses of adsorbent...
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Tài liệu NOMENCLATURE OF ORGANIC COMPOUNDS docx
... NOMENCLATURE OF ORGANIC COMPOUNDS ©2010, 2003, 1980, by David A. Katz. All rights reserved. Organic chemistry is the chemistry of carbon compounds. Carbon has the ability to bond with itself ... in the laboratory. The simplest organic compounds are composed of carbon and hydrogen and are known as hydrocarbons. There are four types, or classes, of hydrocarbons: Alkanes: contain all ... are skeletal or line structures: There are a range of structures used to represent organic compounds: Before we start naming organic compounds, it is important to understand how carbon...
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DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf
... leach organic compounds into the eluting solvent. One liter of watershould pass through the cartridge in about two hours with the assistance of aslight vacuum of about 13 cm (5 in.) of mercury. ... base, andgenerating a list of tentatively identified compounds with their retentiontimes and scan numbers. The software must also allow integration of theion abundance of any specific ion between ... use of very small volumes of organic solventand very small quantities of pure analytes, thereby eliminating the potentialhazards to both the analyst and the environment involved with the use of...
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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx
... March 2003 PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC By S.H. Hilal and S.W. Karickhoff Ecosystems Research ... speciation as a function of pH. When the two pKa values lie within 3 pKa units of one another, such as in the case of N-phenylglycine (as shown in Figure 4), a more detailed survey of the problem ... hydration of the reaction center of interest and the reaction center. The initial and the final states of the reaction center frequently differ substantially in degree of solvation, with the...
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Báo cáo khoa học: Interaction of selenium compounds with zinc finger proteins involved in DNA repair pdf
... present inone of the major classes of transcription factors and otherso-called zinc finger proteins. Within this study we investi-gated the effect of selenium compounds on the activity of theformamidopyrimidine-DNA ... no inhibition wasobservedwithupto1mMmethionine.Effect of selenium compounds on XPA-DNA bindingNext, the effects of different selenium compounds on theactivity of the XPA protein were investigated. ... thusdemonstrating specific binding of XPA (lane 2, band 2). With increasing concentrations of selenocystine (lanes3–10), the intensity of band 2 decreased. Nevertheless,instead of free oligonucleotide,...
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heats of hydrogenation experimental and computational hydrogen thermochemistry of organic compounds
... experimental heats of hydrogenation have had an importance far out of proportion to the small number of research groups engaged in their measurement. Much of our quantitative understanding of such concepts ... grand mean of two experimental sets of results consisting of 9 pairs of hydrogenations (sample and standard), 18 hydrogenations in all. The uncertainties are the arithmetic mean of twice the ... grand mean of two experimental sets of results consisting of 9 pairs of hydrogenations (sample and standard), 18 hydrogenations in all. The uncertainties are the arithmetic mean of twice the...
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electrolysis and electrosynthesis of organic compounds
... timetocreateaninterestintheperformance of experimentson theelectrolysisandelectrosynthesis of organic compounds. AACHEN,ElectrotechnicalLaboratory of thePolytechnicInstitute.November.1895.vi OF ALIPHATIC COMPOUNDS. IIsolutionmono-brom-acetone. ... made1Zeitschr.f.Elektroch.,2,529:ibid.,3,45.AUTHOR'SPREFACETOTHEFIRSTGERMANEDITION.THEobject of electrochemistryis,amongothers,that of performing, with theaid of theelectriccurrent,reactionswhichhaveuptothepresentbeencarriedoutbytheemployment of other forms of energy.Itsverynaturesuggeststhepossibility of solvingsyntheticalandanalyticalproblemswhichhave ... limitednumber of organic syn-theses.A number of paperson theaction of theelectriccurrent on compounds containingcyanogenandsulphurwillnextbementioned.2.Cyanogen Compounds. Cyanogen.BerthelotJobserved...
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electrochemistry of organic compounds 1903 - lob & lorenz
... occurs; this agrees with the observation' of Tafel. that, with a constant-current source and outer resistance, a disturbance of the reduction goes hand in hand with an increase of the current, ... properties of electric energy as well as those of the carbon compounds require special forms of experiment for organic electrochemistry. These differ entirely from the purely chemical art of experimentation, ... disposi-tion of each of the three resulting chapters. 68 ELECTROCHEMISTRY OF ORGANIC COMPOUNDS. Lucius and Br fining x obtain the same effect in neutral or am-moniacal solution of the condensation...
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Tài liệu Glossary of Volatile Organic Compounds ppt
... Two natural sources of benzene are volcanoes and forest fires. Benzene is a natural part of crude oil, gasoline, and cigarette smoke. Benzene is one of the major components of JP-8 fuel. Industry ... effects of carbon tetrachloride at the levels found among the Churchill County study population are not known. Return to menu Glossary of Volatile Organic Compounds ... level of exposure to benzene through food (for example, cooking with contaminated water), beverages, or drinking water is not as high as through air. Health effects Exposure to low levels of...
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ANALYSIS OF NAMES OF ORGANIC CHEMICAL COMPOUNDS BY USING PARSER COMBINATORS AND THE GENERATIVE LEXICON THEORY doc
... to Organic Chemistry terminology. The abilities of analysing and correcting the ambiguities of the inadequate names and of using an optimized extension of Xymtec to represent the pictures of ... presented here is a very useful automatic Organic Chemistry instructor specialized in the analysis of names of organic chemical compounds and in the generation of their chemical structure pictures. ... chemical compounds. 2. THEORETICAL BACKGROUND 2.1. Principles of Organic Chemistry The organic chemistry is the branch of chemistry that studies the carbon based chemical compounds. ...
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DETERMINATION OF VOLATILE ORGANIC COMPOUNDS (VOC) IN CONSUMER PRODUCTS AND REACTIVE ORGANIC COMPOUNDS IN AEROSOL COATING PRODUCTS doc
... fraction of non-exempted volatile organic compounds in the non-propellant portion. n = number of non-exempted volatile organic compounds in the non-propellant portion. WL = weight (gm) of the ... fraction of water in the non-propellant portion. EL = weight fraction of exempt compounds in the non-propellant portion. WP = weight (gm) of propellant. EP = weight (gm) of exempt compounds ... TO DETERMINE REACTIVE ORGANIC COMPOUNDS IN AEROSOL COATING PRODUCTS This section specifies the procedure for determining the percent by weight of the reactive organic compounds contained in...
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Source Identification of Volatile Organic Compounds in Houston, Texas pdf
... The principle of the PTR-MS is the reaction of organic species in ambient air with H3O+ions, generatedfrom thehollow cathode discharge of watervapor, to producethe protonated organic species ... 0.835,0.360, and 0.089, respectively. Here M43, M61, and M87denote theclasses ofcompounds withthe mass/chargevalues of 43, 61, and 87, respectively. In this study, the dominantcomponents for ... contribution plotfor this source shows a number of peaks, noneof whichwereon the weekends, and the KD value of this source is 0.579.This agrees with the result of weekend factor. The significantvariation...
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Chemical evolution of volatile organic compounds in the outflow of the Mexico City Metropolitan area potx
... thedistributions of VOC chemical classes. A box model with Published by Copernicus Publications on behalf of the European Geosciences Union.2354 E. C. Apel et al.: Chemical evolution of volatile organic compounds detailed ... individual and classes of VOCspecies. This will be used to help understand the chemicaltransformation of air parcels as they are exported out of anddownwind of the MCMA. For organic compounds the ... chemistry of organic com-pounds: a review, Atmos. Environ., 24A, 1–41, 1990.Atkinson, R., Kinetics and mechanisms of the gas phase reactions of the hydroxyl radical with organic compounds, ...
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