Academic literature on the topic 'Organosulfur compounds – Derivatives – Analysis'

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Journal articles on the topic "Organosulfur compounds – Derivatives – Analysis"

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El-Sawi, Emtithal A., Mona A. Hosny, and Taghreed H. El-Sayed. "Phosphorylation and Promising In-Vitro Antimicrobial Activity of Some New Organosulfur Compounds." JOURNAL OF ADVANCES IN CHEMISTRY 9, no. 2 (2013): 1965–74. http://dx.doi.org/10.24297/jac.v9i2.2352.

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During the past few decades, interest has been rapidly growing in gaining insight into the properties and transformations of thiosemicarbazide and their derivatives due to their appreciable pharmacological activities. Dimethoxy acetophenone reacts with thiosemicarbazide to afford compound (1). The product allowed to react by fusion with diethylmalonate and ethylacetoacetate to give cyclic compounds (3), (4) and (7). Their products are reacted with triphenylphosphine oxide to produce phosphorylated compounds with four and six membered rings. Some of these products display interesting biological
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Mulder, Ines, Torsten Krause, Tobias Sattler, et al. "Thermolytic degradation of methylmethionine and implications for its role in DMS and MeCl formation in hypersaline environments." Environmental Chemistry 12, no. 4 (2015): 415. http://dx.doi.org/10.1071/en14207.

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Environmental context Methyl chloride and dimethyl sulfide are important atmospheric trace gases, but their biogeochemical contributions to the atmosphere are not fully understood. The amino acid derivative methyl methionine has been hypothesised to be a precursor of these two atmospheric gases, especially in drying salt-lake environments. We found methyl chloride and dimethyl sulfide in salt crystals and soil samples of hypersaline lakes, suggesting that a thermal decay of methyl methionine could be one of the formation mechanisms responsible. Abstract Volatile organic halocarbons (VOXs) and
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Bachrach, Steven M., and Ulrike Salzner. "Topological electron density analysis of organosulfur compounds." Journal of Molecular Structure: THEOCHEM 337, no. 3 (1995): 201–7. http://dx.doi.org/10.1016/0166-1280(94)04117-b.

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Yin, Fangdong, Daniel Grosjean, and John H. Seinfeld. "Analysis of atmospheric photooxidation mechanisms for organosulfur compounds." Journal of Geophysical Research 91, no. D13 (1986): 14417. http://dx.doi.org/10.1029/jd091id13p14417.

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Anisimov, A. V., Zh B. Myltykbaeva, Zh Kairbekov, et al. "Pyridine derivatives as ligands of metal complexes for the peroxidation of organosulfur compounds." Theoretical Foundations of Chemical Engineering 51, no. 4 (2017): 563–66. http://dx.doi.org/10.1134/s0040579517040029.

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Chittezhath, Manesh, and Girija Kuttan. "Radioprotective Activity of Naturally Occurring Organosulfur Compounds." Tumori Journal 92, no. 2 (2006): 163–69. http://dx.doi.org/10.1177/030089160609200213.

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The radioprotective effects of naturally occurring sulfur compounds and isothiocyanates such as diallyl sulfide (DAS), diallyl disulfide (DADS), allyl methyl sulfide (AMS), allyl isothiocyanate (AITC) and phenyl isothiocyanate (PITC) have been investigated in whole body irradiated Swiss albino mice. Administration of these sulfur compounds could reduce the serum content of alkaline phosphatase (ALP), which was elevated after irradiation (23.9 ± 1.82 KA units). The elevated liver content of glutamate pyruvate transaminase (GPT) in control animals (76.2 ± 2.2 U/mL) after irradiation was signific
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Muttaqin, Fauzan Zein, Taufik Muhammad Fakih, and Hubbi Nashrullah Muhammad. "MOLECULAR DOCKING, MOLECULAR DYNAMICS, AND IN SILICO TOXICITY PREDICTION STUDIES OF COUMARIN, N-OXALYLGLYCINE, ORGANOSELENIUM, ORGANOSULFUR, AND PYRIDINE DERIVATIVES AS HISTONE LYSINE DEMETHYLASE INHIBITORS." Asian Journal of Pharmaceutical and Clinical Research 10, no. 12 (2017): 212. http://dx.doi.org/10.22159/ajpcr.2017.v10i12.19348.

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Objective: Prostate cancer is the second most common cancer in men. One of the efforts in the treatment of prostate cancer is by inhibiting histone lysine demethylase. Derivative compounds of coumarine, N-oxalylglycine, organoselenium, organosulfur, and pyridine have been reported to be active against two types of histone lysine demethylase (KDM) enzymes, KDM4E and KDM5B. This study aims to study the interactions of these derivatives with KDM.Methods: In this study, we performed computational studies, including molecular docking and molecular dynamics (MDs) simulations, and toxicity prediction
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Schepetkin, Igor A., Liliya N. Kirpotina, Andrei I. Khlebnikov, Narayanaganesh Balasubramanian, and Mark T. Quinn. "Neutrophil Immunomodulatory Activity of Natural Organosulfur Compounds." Molecules 24, no. 9 (2019): 1809. http://dx.doi.org/10.3390/molecules24091809.

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Organosulfur compounds are bioactive components of garlic essential oil (EO), mustard oil, Ferula EOs, asafoetida, and other plant and food extracts. Traditionally, garlic (Allium sativum) is used to boost the immune system; however, the mechanisms involved in the putative immunomodulatory effects of garlic are unknown. We investigated the effects of garlic EO and 22 organosulfur compounds on human neutrophil responses. Garlic EO, allyl propyl disulfide, dipropyl disulfide, diallyl disulfide, and allyl isothiocyanate (AITC) directly activated Ca2+ flux in neutrophils, with the most potent bein
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IWASAKI, FUJIKO. "Vision for the application of electron density analysis. 8. Hypervalent organosulfur compounds." Nihon Kessho Gakkaishi 30, no. 2 (1988): 169–70. http://dx.doi.org/10.5940/jcrsj.30.169.

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Bock, H., B. Hierholzer, and P. Rittmeyer. "Radikalionen, 81. ENDOR-spektroskopische Untersuchungen an Radikalkationen aromatischer Organoschwefel-Verbindungen / Radical Ions, 81. ENDOR Spectroscopic Investigations of Radical Cations of Aromatic Organosulfur Compounds." Zeitschrift für Naturforschung B 44, no. 2 (1989): 187–204. http://dx.doi.org/10.1515/znb-1989-0216.

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Conditions for ENDOR measurem ents of organosulfur radical cations are discussed and tested. The one electron oxidation of a variety of aromatic sulfur com pounds comprising benzene-1,2-dithiole, 1,4-dithiine, thianthrene and diphenylsulfide derivatives as well as 33S isotope-marked bis(2,5-dimethoxyphenyl)disulfide is accomplished using the oxygen-free, powerful and selective AlCl3/H2CCl2 reagent. Partly with substantial structural changes, paramagnetic M⊕ species of 1,2-benzodithiete, 1,4-dithiine, thianthrene and diphenyl sulfide result. Their temperature-dependent ENDOR signal patterns pro
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Dissertations / Theses on the topic "Organosulfur compounds – Derivatives – Analysis"

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Morris, Stephen Arthur. "The oxidative-addition to some organosulfur compounds to bis (ð5-cyclopentadienyl) titanium (II) dicarbonyl /." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75828.

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Cp$ sb2$Ti(C))$ sb2$, where Cp = $ eta sp5$-cyclopentadienyl, reacted with RSSSR to give the catenated sulfur complexes Cp$ sb2$Ti(SR)(SSR), where R = CMe$ sb3$, CHMe$ sb2$, CH$ sb2$Ph, p-C$ sb6$H$ sb4$Me and CPh$ sb3$. These complexes, except for R = CPh$ sb3$, reacted with PhCH$ sb2$Br to give Cp$ sb2$TiBr$ sb2$, PhCH$ sb2$SR and PhCH$ sb2$SSR as major products. Cp$ sb2$Ti(SR)(SSR) desulfurized slowly in solution and rapidly in the presence of Ph$ sb3$P, giving Cp$ sb2$Ti(SR)$ sb2$ and Ph$ sb3$PS, in addition to other species. Similarly, phth-SSR, where phth = phthalimide, oxidatively added
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Driega, Alex B. (Alexander Brooke) Carleton University Dissertation Chemistry. "An analysis of factors contributing to isotropic [superscript] 13C shifts in 1,2- Dialkoxybenzene and Cyclohexane derivatives." Ottawa, 1992.

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Broeker, Jeffrey Lee. "Theoretical and experimental studies on oxidation and interactions of mono- and dithioethers and their derivatives." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184506.

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The potential energy surface of naphtho (1,8-b,c) -1,5-dithiocin and its mono-, di-, tri-, and tetraoxides was analyzed by dynamic ¹H NMR spectroscopy, AM1 semiempirical calculations, and x-ray crystallography. The lowest energy conformers of these compounds in the solid state, the gas state, and in solution, as well as the energy barriers for the interconversion between their conformers are reported. The electronic structure of naphtho (1,8-b,c) -1,5-dithiocin was analyzed by the AM1 semiempirical method. An experimental method was developed to verify these calculations. Comparison of the rel
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Maia, Francisco Jonas Nogueira. "Obtaining, characterization and application of additives antioxidants derivatives of the main shareholders of the constituents of the bark cashew nuts." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15502.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>Organic substrates derived from petroleum such as gasoline, diesel, lubricants, polymers and natural organic products, such as biofuels are, in most cases, susceptible to oxidation process that occurs initially through formation of free radicals, which modifies the chemical characteristics and alters the properties of these materials. Aiming the inhibition or reduction of the oxidative process, many works have been directed to the development of additives that prevent the formation and the action of radical species, called antioxida
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Zhu, Lei. "On Visualizing Branched Surface: an Angle/Area Preserving Approach." Diss., Available online, Georgia Institute of Technology, 2004, 2004. http://etd.gatech.edu/theses/available/etd-09142004-114941/.

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Thesis (Ph. D.)--Biomedical Engineering, Georgia Institute of Technology, 2006.<br>Anthony J. Yezzi, Committee Member ; James Gruden, Committee Member ; Allen Tannenbaum, Committee Chair ; May D. Wang, Committee Member ; Oskar Skrinjar, Committee Member. Vita. Includes bibliographical references.
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Moreira, Ana Sofia Pereira. "Study of modifications induced by thermal and oxidative treatment in oligo and polysaccharides of coffee by mass spectrometry." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17074.

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Doutoramento em Bioquímica<br>Os polissacarídeos são os componentes maioritários dos grãos de café verde e torrado e da bebida de café. Os mais abundantes são as galactomananas, seguindo-se as arabinogalactanas. Durante o processo de torra, as galactomananas e arabinogalactanas sofrem modificações estruturais, as quais estão longe de estar completamente elucidadas devido à sua diversidade e à complexidade estrutural dos compostos formados. Durante o processo de torra, as galactomananas e arabinogalactanas reagem com proteínas, ácidos clorogénicos e sacarose, originando compostos castanh
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Soderman, Stefan Charles. "Alkylations, Rearrangements, and Cyclizations of Oxidized Organosulfur Compounds." Thesis, 2013. http://hdl.handle.net/10214/7421.

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Organosulfur compounds have been used by humans for centuries and played a pivotal role in shaping our history. The chemistry presented herein deals primarily with three distinct organic transformations involving organosulfur species. The three transformations are used in tandem to complete the synthesis of natural products. The first chapter examines a new diastereoselective alkylation reaction of sulfenate anions with stereoinduction provided by chiral amino iodides. A series of β-amino sulfoxides are accessed in good yields and selectivities from alkylations with the corresponding lithium a
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Ramonetha, Thata Golden. "Synthetic and spectroscopic studies of 6-substituted chromone derivatives." Diss., 2015. http://hdl.handle.net/11602/772.

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Pillay, Adushan. "Synthesis and biological activity of aloin derivatives." Thesis, 2008. http://hdl.handle.net/10413/192.

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This project is focused on the synthesis and biological activity of aloin and derivatives. Aloin is a C-glucoside anthrone that is found in Aloe marlothii, a common Southern African plant used in traditional medicine. Aloin was isolated from A. marlothii, employing a selective chelation isolation procedure. This compound is known to have numerous biologically active properties, and can be used as a laxative, an anti-bacterial agent, an anti-oxidant, and as a cytotoxic drug against breast and ovarian tumour cell lines. More relevant to this research investigation, was the reported anti-inflamma
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Gengan, Robert Moonsamy. "The synthesis of xanthone derivatives and their enzymatic conversion and inhibition of aflatoxin biosynthesis." Thesis, 1996. http://hdl.handle.net/10413/6391.

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The biosynthesis of Aflatoxin B1 (AFB1) has been the subject of conflicting speculation and numerous reviews. The currently accepted scheme for the aflatoxin pathway is based on data obtained from feeding studies using isotopically labelled precursors. In these studies the conversion of possible intermediate metabolites to AFBl by mutants of Aspergillus parasiticus illustrated their role as biogenetic precursors. Currently there is now agreement on the identity of most of the intermediate Illetabolites involved in the biosynthesis of AFB1. However, there is a lack of clarity on the details of
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Books on the topic "Organosulfur compounds – Derivatives – Analysis"

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Karimovich, Nadirov Nadir, ed. Seraorganicheskie soedinenii͡a︡ nefti. Izd-vo "Nauka," Sibirskoe otd-nie, 1986.

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(Editor), H. U. Bergmeyer, J. Bermeyer (Editor), and M. Bral (Editor), eds. Methods of Enzymatic Analysis, 3.eE, Vol. 7, Metabolites 2: Tri- and Dicarboxylic Acids, Purines, Pyrimidines and Derivatives, Coenzymes, Inorganic Compounds. 3rd ed. John Wiley & Sons, 1985.

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Book chapters on the topic "Organosulfur compounds – Derivatives – Analysis"

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Haeberlin, S. Trebert, F. Lux, T. Spruss, R. Gust, and H. Schönenberger. "Determination of Platinum and Biologically Essential Trace Elements by Neutron Activation Analysis in Pharmacokinetic Studies on Cisplatin Derivatives with Estrophilic Ligands." In Platinum and Other Metal Coordination Compounds in Cancer Chemotherapy. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1717-3_39.

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Rod’ko, I. Ya, B. F. Scott, and J. H. Carey. "Analysis of Pulp Mill Black Liquor for Organosulfur Compounds Using GC/Atomic Emission Detection." In ENVIRONMENTAL FATE and EFFECTS of PULP and PAPER MILL EFFLUENTS. CRC Press, 2020. http://dx.doi.org/10.1201/9780367812690-19.

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de Souza, Anacleto S., Leonardo G. Ferreira, and Adriano D. Andricopulo. "2D and 3D QSAR Studies on a Series of Antichagasic Fenarimol Derivatives." In Pharmaceutical Sciences. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1762-7.ch037.

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Chagas disease is one of the most important neglected tropical diseases. Endemic in Latin America, the disease is a global public health problem, affecting several countries in North America, Europe, Asia and Oceania. The disease affects around 8-10 million people worldwide and the limited treatments available present low efficacy and severe side effects, highlighting the urgent need for new therapeutic options. In this work, the authors developed QSAR models for a series of fenarimol derivatives exhibiting anti-T. cruzi activity. The models were constructed using the Hologram QSAR (HQSAR), Comparative Molecular Field Analysis (CoMFA) and Comparative Molecular Similarity Indices Analysis (CoMSIA) methods. The QSAR models presented substantial predictive ability for a series of test set compounds (HQSAR, r2pred = 0.66; CoMFA, r2pred = 0.82; and CoMSIA, r2pred = 0.76), and were valuable to identify key structural features related to the observed trypanocidal activity. The results reported herein are useful for the design of novel derivatives having improved antichagasic properties.
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Devkate, Chandrashekhar, Satish Kola, Mohammad Idrees, Naqui J. Siddiqui, and Roshan D. Nasare. "Eco-Friendly, Green Approach for Synthesis of Bio-Active Novel 3-Aminoindazole Derivatives." In Green Computing Technologies and Computing Industry in 2021. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95565.

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In present chapter we have reported green and highly efficient method for synthesize novel series of substituted -1H-indazol-3-amine derivative (3a-h) by cyclocondensation reaction of substituted benzonitrile (1a-h) and substituted Hydrazine (2a-h) using ceric (IV) ammonium nitrate (CAN) as a catalyst, EtOH-H2O as a ecofriendly media and reaction was carried out under ultrasound irradiation green method. The structures of newly synthesized indazole derivative (3a-h) were corroborated through spectral investigation such as elemental analysis and spectral studies like IR, C13 NMR, Mass spectra and 1H NMR. The compounds were assessed for their in-vitro antimicrobial activity with pathogenic microbe comprising Gram positive bacterial strains, S. aureus and Gram negative strains E.coli, P.vulgaris, and S. typhi at different concentration. The consequence of bioassay is compared with standard drug Chloramphenicol.
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V. Sazanova, Katerina, Nadezhda V. Psurtseva, and Alexey L. Shavarda. "Metabolomic Changes in Wood Inhabiting Filamentous Fungi during Ontogenesis." In Metabolomics - Methodology and Applications in Medical Sciences and Life Sciences. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96621.

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GC–MS-based metabolomic profiling of different strains of basidiomycetes Lignomyces vetlinianus, Daedaleopsis tricolor and Sparassis crispa were studied. On different stages of growth in the methanol extracts of mycelium the different compounds including amino acids, organic acid of TCA cycle, sugars, fatty acids, sugar alcohols, and sugar acids were detected. Changes in the metabolite network occurring with age of the mycelium of L. vetlinianus and D. tricolor are discussed. The exponential phase of mycelium growth is characterized by pronounced differences during of growth, which manifests itself both in the analysis of specific compounds and in the modeling of the statistical model of the metabolic network. The metabolomic network in the stationary growth phase is less susceptible to changes over time, and is also characterized by a lower dispersion of samples from one aging group. For some compounds, including biotechnologically significant ones, targeted analysis by GC–MS was performed. 4, 6-dimethoxy-phthalide (4, 6-dimetoxy-1 (3H) -isobenzofuranone) was isolated from the mycelium of Lignomyces vetlinianus, accumulating in the mycelium in the form of large aggregates. The accumulation of sparassol and other orsellinic acid derivatives in Sparassis crispa culture under various conditions is described.
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"Table II : Quantitative determination of carbonyl compounds at different odour sources (concentrations in ppb) Rendering plant Gelatine plant neighbourhood neighbourhood Formaldehyde 40 16 Acetaldehyde 39 24 Acetone 36 73 Prcpanal 10 -Isobutyraldehyde 10 30 Pentanal 15 19 Hexanal 3.52 Heptanal 12.5 Octanal 10.5 Nonanal 1 2 acids (figure 7). However extractions always involve a serious decrease in sensitivity, while evaporation of the extract produces a solution in 0.1-0.5 ml of solvent, and only 1 pi of it can be brought in the gas chromatograph. Therefore work is in progress to enhance sensitivity by converting acids in­ to halogenated derivatives, which can be GC-analysed with the more sensitive electron-capture detector. For thiols a similar procedure is investigated as with aldehydes. One possibility is absorption of thiols in an alkaline solution and reaction with 2,4-dinitrochlorobenzene, yielding 2,4-dinitrofenylsulfides, which are analysed by HPLC (9). Sane improvements on removal of reagents at the one hand and on separation of sane by-products on the other hand have to be achieved in order to in­ crease the sensitivity with another factor of ten. 5. CONCLUSION The actual scope and limitations of chemical analysis of odour show that all problems can be tackled as far as emission is concerned. For iititiission measurements seme progress is necessary, but there is no essential reason why chemical analysis would be unable to attain the desired sensitivity for all types of odorants. There is no doubt that in a few years the last dif­ ficulties will be solved. In order to achieve real control of odour nui­ sance, automatic measurement is necessary on a long time basis. There again seme technical development is to be expected. Does this mean that machines are going to decide if an odour is pre­ sent or not? By no means, while the population will always be the reference, and psychophysical measurements will be necessary to make chemical analysis possible." In Odour Prevention and Control of Organic Sludge and Livestock Farming. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-77.

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Conference papers on the topic "Organosulfur compounds – Derivatives – Analysis"

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Paulussen, H., R. Kiebooms, J. Gelan, and D. Vanderzande. "The synthesis of suitable model compounds for structural analysis of poly(isothianaphthene)-derivatives." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835324.

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Puteri, Zahra R., Yuly Kusumawati, Athar L. Ivansyah, and Muhamad A. Martoprawiro. "Computational study to determine redox potential of nitroxide radical and their derivatives compounds along with their analysis as redox-coupe in dye sensitized solar cell’s (DSSC)." In THE 3RD INTERNATIONAL SEMINAR ON CHEMISTRY: Green Chemistry and its Role for Sustainability. Author(s), 2018. http://dx.doi.org/10.1063/1.5082498.

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Lei, Hanwu, Shoujie Ren, James Julson, Lu Wang, Quan Bu, and Roger Ruan. "Microwave Torrefaction of Corn Stover and Tech-Economic Analysis." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50230.

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Microwave torrefaction of corn stover with particle size of 4 mm was investigated and the effects of reaction temperature and time on the yields of volatile, bio-oil and torrefied biomass were determined. The response surface analysis of the central composite design (CCD) showed that the yields of volatile, bio-oil and torrefied biomass were significantly affected by the reaction temperature and time. Three linear models were developed to predict the yields of conversion products as a function of temperature and time. A first order reaction kinetics was also developed to model the corn stover
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Heiremans, J., M. Claeys, and A. G. Herman. "DETERMINATION OF CHOLESTERYL HYDROXYOCTADBCADIENOATES IN VASCULAR TISSUE BY HPLC AND ITS RELEVANCE TO ATHEROSCLEROSIS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643084.

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Accumulation of lipids in the intimal arterial layer, and of cholesterol esters in particular, has been recognised as an early and prominent phenomenon in atherogenesis. Several attempts have been made to link putative peroxidation of these lipids in vivo to causal or deteriorating etiological determinants of plaque formation. The occurrence in advanced human atheromata of oxidized derivatives of cholesteryl linoleate -a major polyunsaturated cholesterol ester species in plasma and vessel wall - has been described by Brooks et al. (Atherosclerosis, 1970,13,223) and a positive correlation betwe
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