classification of organic compounds by functional group
DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf
Ngày tải lên :
22/03/2014, 14:20
... use of very small volumes of organic solvent
and very small quantities of pure analytes, thereby eliminating the potential
hazards to both the analyst and the environment involved with the use of ... degrees of freedom
n = number of replicates
S = standard deviation of replicate analyses
13.2 Problem Compounds
RF
(A
x
) (Q
is
)
(A
is
) (Q
x
)
525.2-20
identifications. If fewer than 99% of the compounds ... concentration of each identified component is measured by relating the MS
response of the quantitation ion produced by that compound to the MS response of the
quantitation ion produced by a compound...
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Tài liệu ADSORPTION OF ORGANIC COMPOUNDS doc
Ngày tải lên :
14/02/2014, 03:20
... bC
e
1
ᎏ
n
ADSORPTION OF ORGANIC COMPOUNDS 13.3
CHAPTER 13
ADSORPTION OF ORGANIC
COMPOUNDS
Vernon L. Snoeyink, Ph.D.
Ivan Racheff Professor of Environmental Engineering
Department of Civil and Environmental ... application of 1.1 mg
O
3
/mg DOC resulted in removal of 35 to 40 percent of the influent DOC by biologi-
cal oxidation. Biodegradable compounds may be removed by microbes, without prior
ADSORPTION OF ORGANIC ... Kinetics
Transport Mechanisms. Removal of organic compounds by physical adsorption
on porous adsorbents involves a number of steps, each of which can affect the rate
of removal:
1. Bulk solution transport...
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Tài liệu NOMENCLATURE OF ORGANIC COMPOUNDS docx
Ngày tải lên :
14/02/2014, 08:20
... atoms)
IV. Naming Functional Group Compounds
Derivatives are formed by replacing one or more of the hydrogens in a hydrocarbon by a
FUNCTIONAL GROUP. The functional group is responsible ...
Naming of esters
Esters are usually named by naming the R’ group [from an alcohol] as an akyl group first
followed by the acid name [the R-C group] with ending -oate. Esters are often called by ...
A summary of the functional group compounds, their structures and names is listed in
tables on the next two pages.
1
NOMENCLATURE OF ORGANIC COMPOUNDS
©2010, 2003, 1980, by David A....
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TECHNIQUES FOR THE ANALYSIS OF ORGANIC CHEMECALS BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (ICP-MS) pptx
Ngày tải lên :
05/03/2014, 21:20
... possibility of contamination
and the loss of volatile analytes. Where possible, direct
4
Table 1. Recommended Conditions for analysis of various organic solvents
Removal of Spectral ... the use of organic solvent
resistant materials in the sample introduction path and
precise control of sample delivery and solvent
volatility to avoid system overloading. Optimization of
plasma ... determination of metals in
aqueous sample matrices because of its multielement
capability, excellent sensitivity, flexibility and reliability
as a routine analytical tool. However, the analysis of
organic...
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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx
Ngày tải lên :
22/03/2014, 14:20
...
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 ... affinities and both functional groups make
important contributions to the hydrogen ion concentration (i.e., appreciable concentrations of the
acidic and the basic forms of both functional groups are ... other group is ionized and one when the other
group is not ionized.
When the pK
a
's of the ionizing groups are arithmetically far apart (as those of glycine
shown in Figure 3) knowledge of...
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ANALYSIS OF NAMES OF ORGANIC CHEMICAL COMPOUNDS BY USING PARSER COMBINATORS AND THE GENERATIVE LEXICON THEORY doc
Ngày tải lên :
05/03/2014, 20:20
...
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 ... Cheminformatics analysis of organic substituents: Identification of the most
common substituents, calculation of substituent properties, and automatic identification of drug-
like bioisosteric groups. J. ... 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....
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Tài liệu Glossary of Volatile Organic Compounds ppt
Ngày tải lên :
14/02/2014, 03:20
... 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 ... nonsmokers and 0.66 ppb for smokers).
The effect of benzene exposure on the general population at current levels of exposure is not
known. The health effects of benzene at the levels found among the...
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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
Ngày tải lên :
06/03/2014, 11:20
... 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 ... analysis.
Induction of the introduced plasmids was performed by
the addition of 0.5 mm isopropyl thio-b-d-galactoside
(IPTG).
Gene amplification and cloning of the truncated
Ptas
Pta fragments were amplified by ... value (Table 1).
Regulation of E. coli Pta and truncated Pta
activity by metabolic effectors
The effects of several metabolites that acted as meta-
bolic effectors of different Ptas were analyzed...
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DETERMINATION OF VOLATILE ORGANIC COMPOUNDS (VOC) IN CONSUMER PRODUCTS AND REACTIVE ORGANIC COMPOUNDS IN AEROSOL COATING PRODUCTS doc
Ngày tải lên :
14/03/2014, 20:20
... 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 ... and the presence of any
compounds prohibited by ARB regulations (“prohibited compounds ). Components of
the product that do not meet the definition of a VOC or are exempted by ARB regulations ... 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...
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Source Identification of Volatile Organic Compounds in Houston, Texas pdf
Ngày tải lên :
22/03/2014, 14:20
... changes
of theemission ratesof the anthropogenic acetic acidsources.
Source 8 is characterized by c9-benzenes and c10-
benzenes. A number of c9- and c10-benzenes emitters (e.g.,
the operation units of ... The principle of the PTR-MS is the reaction of
organic species in ambient air with H
3
O
+
ions, generated
from thehollow cathode discharge of watervapor, to produce
the protonated organic species ... contribution plot
for this source shows a number of peaks, noneof whichwere
on the weekends, and the KD value of this source is 0.579.
This agrees with the result of weekend factor. The significant
variation...
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Báo cáo khoa học: Identification of a putative triacylglycerol lipase from papaya latex by functional proteomics pdf
Ngày tải lên :
22/03/2014, 17:20
... mainly because of the lack of solubility of the enzyme. Here, we
describe the characterization of lipase activity of the latex of Vasconcel-
lea heilbornii and the identification of a putative ... was divided by the sum of all
major spots. Alternatively, the intensity of the spot of inter-
est was divided by the whole area that contains proteins
(about the left two-thirds left of the gel), ... subtraction of background measured in the bottom
left part of the gel. The percentage of a given spot was
estimated with the use of two different measures. The inten-
sity of the spot of interest...
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Đề tài " The classification of pcompact groups for p odd " pdf
Ngày tải lên :
22/03/2014, 20:21
... Weyl group of a self-centralizing rank two
nontoral elementary abelian p-subgroup of a connected p-compact group. (The
Weyl group of an elementary abelian p-subgroup ν : E → X of a p-compact
group ... the elements of order p in the center of GL
n
(C).
Let Γ
r
denote the subgroup of GL
n
(C) generated by the image of p
1+2r
+
and
the center of GL
n
(C). Note that as an abstract group Γ
r
fits ... upon.
2. Skeleton of the proof of the main Theorems 1.1 and 1.4
The purpose of this section is to give the skeleton of the proof of the main
Theorems 1.1 and 1.4, but in the proofs referring forward...
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Báo cáo khoa học: RNA reprogramming of a-mannosidase mRNA sequences in vitro by myxomycete group IC1 and IE ribozymes pptx
Ngày tải lên :
23/03/2014, 11:20
... Einvik
1,3
1 Department of Molecular Biotechnology, RNA Research group, Institute of Medical Biology, University of Tromsø, Norway
2 Department of Microbiology, University Hospital of North Norway, ... extending the IGS
and by the removal of unwanted hydrolysis side reac-
tions by ribozyme modifications. Here we report the
mapping of accessible ribozyme target sites in a
mutant version of a-mannosidase ... 4C)
appears to correlate to a putative folding problem of
the P4–P6 domain, either as a result of the lack of
intradomain stabilization or by misfolding of the com-
plex sequence features. Fse.L1898 possesses...
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