Catálogo de libros: Química

2929 Catálogo de libros: Química

Matemáticas y ciencia / Química
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  • Accelerated shelf-life studies on barley products
    Oscar Alejandro Celis Toledo
    Food is a biological and physico-chemical system with a variable quality that decreases over time. The time between the elaboration of the product until the parameters that determine its quality decay and are considered unacceptable for the consumer is called shelf life, and depends on factors such as humidity, storage temperature, quality of raw materials, among others. Shelf-...
    Disponible

    54,90 €

  • Chemical and biological study of Pistacia lentiscus L. from Morocco
    Fatima AOUINTI
    Within the framework of the valorization of the natural substances, we were interested in the study of the lentisque -Pistacialentiscus L.- collected from different sites of Eastern Morocco and during different periods of the year.The results showed that the chemical composition of the essential oil of the leaves and fruits of PLL. can vary considerably depending on: -the part ...
    Disponible

    97,48 €

  • METHOD DEVELOPMENT OF REMOGLIFLOZIN ETABONATE USING HPLC
    Abhinav Singh / Manish Pathak
    The objective of the study IS to develop and validate the dissolution method assisted with the analytical method for the estimation of remogliflozin etabonate. Dissolution test has emerged in the pharmaceutical field as a very important tool to characterize drug product performance. It provides measurements of the bioavailability of a drug as well as demonstrates bioequivalence...
    Disponible

    87,09 €

  • ReO3- type structures as electrode materials for Li-ion batteries
    D. Saritha
    In recent years, research into potential substitutes for carbonaceous anode materials working at higher potentials in Li-ion batteries has picked up steam. It is imperative for safety reasons to swap out the low voltage graphite negative electrode ( 0.4V versus Li+/Li) with alternative materials functioning at greater voltages. The need is met by titanium and niobium oxides wit...
    Disponible

    61,88 €

  • LAB MANUAL OF PHARMACEUTICAL ORGANIC CHEMISTRY
    Manish Pathak
    The Practical book is an attempt to give to students of practical Pharmaceutical organic chemistry the benefit of some 11 years of experience in the teaching of the subject. The new procedures and many specialized techniques are incorporated into this book. Furthermore, new experiments for the elementary student have emanated; have been tried out with large classes of undergrad...
    Disponible

    61,44 €

  • Synthesis of Pyran Derivatives and Their Biological Activity
    Dhaval B. Patel
    In this book, we have discussed and to per best of our knowledge, we are the foremost in reporting water and ethanol as a solvent in the synthesis of ethyl 6-amino-5-cyano-2-methyl-4H-pyran-3-carboxylate derivative using Urea as a novel catalyst under the short period of time. This clearly shows that all substrates react smoothly under optimal conditions to give direct products...
    Disponible

    71,96 €

  • Application and Synthesis of Small Quinoline Derivatives
    Dhaval B. Patel
    In this book, we have established a green and highly efficient one-pot three component microwave irradiation protocol for the synthesis of various quinoline-4-carboxylic acidscatalyzed by p-TSA. The p-TSA catalyst was easily commercially available and non-hazardous. There are many features of this protocol including high yield of products with high purity as well as lower react...
    Disponible

    72,08 €

  • Binary and ternary electrodes for the electro-oxidation of methanol and ethanol
    Geasi Pavão Soares
    With the growing world concern about environmental issues and energy matrixes that guarantee the maintenance of sustainable development, studies have been made in the most diverse lines of research in search of the best conditions for the use and exploitation of the energy generated. Among the energy generating systems, fuel cells stand out, in which the best combination of cat...
    Disponible

    76,13 €

  • Quinoline Derivatives and Their Application
    Dhaval B. Patel
    In summary Series of new 2-(2-chlorophenyl)quinoline-4-carboxylic acid-based thiosemicarbazide were synthesized in excellent yields. Synthesized derivatives were characterized by spectral studies 1H NMR, 13C NMR, mass spectrometry, IR analysis, elemental analyses and physical studies of Melting points. All the newly synthesized compounds were screened for biological activity an...
    Disponible

    72,08 €

  • Sars Cov-2 Spike Protein Derivates Graphene & Wireless Communication
    Mauro Luisetto / Raffaele Ansovini / Riccardo Benzi Cipelli
    Aim of this work is to search and analyze scientific literature involved in the effect played by wireless communication radiation in the SARS-COV-2 spike protein derivates pathological process.This make possible to verify if it is necessary to be considered as a toxicological co-factor . Various published evidence found graphene impurity in vials of some covid-19 vaccine ( P. C...
    Disponible

    61,94 €

  • Micropollutants in Wastewater Treatment Plants
    Fouad Dimane / Khadija HABOUBI / Yahya El Hammoudani
    Wastewater is contaminated by a wide range of pollutants qualified as micropollutants. Wastewater treatment plants only partially remove micropollutants. The direct discharge of treated wastewater is a major pathway for the introduction of these pollutants into the environment. This book is an updated summary of the presence of these contaminants in wastewater, as well as their...
    Disponible

    97,60 €

  • TEXTILE TESTING & ANALYSIS
    Gopalakrishnan Duraisamy / Pragadheeswari Rajendharan / Yamunadevi S
    Textile testing is checking the quality and suitability of raw material and selection of material. It is an important part for textile production, distribution, and consumption. Though it is an expensive business but essential too. There are some reasons for textile testing; such as, checking raw materials, monitoring production, assessing the Final Product, investigation of fa...
    Disponible

    61,94 €

  • Multicomponent synthesis of 4H-pyran-3-carboxylate derivatives
    Dhaval B. Patel
    A simple, versatile, one-pot, multi-component reaction (MCR) of ethyl 6-amino-5-cyano-2-methyl-4H-pyran-3-carboxylate derivatives has been achieved in the presence of urea as a potent catalyst in water-ethanol as a green solvent system. Reaction was proceeding via three component reaction by utilizing various aldehyde, malononitrile and ethylacetoacetate at room temperature. Al...
    Disponible

    61,51 €

  • Monitoring of exposure to metallic elements
    Joel Tuakuila / Martin Kabamba Mutangilayi
    The problem of air pollution is insufficiently documented in the Democratic Republic of Congo (DRC) in general and in the city of Kinshasa in particular compared to countries in the northern hemisphere. This is worrying when one observes that Kinshasa, the capital of the DRC, is not spared from these atmospheric risks of all kinds. Anthropogenic activities (intense traffic at t...
    Disponible

    91,68 €

  • Polyester/Argil nanocomposites Presentation, Elaboration, Study
    Fatma Zohra Benabid / Foued Zouai
    Nanocomposites are of great industrial and technological interest. In recent years, they have gained rapidly increasing interest due to the combination of properties they present. Thanks to the small dimensions of the nanoparticles, these materials have a high fraction of interfacial regions (interphase) which has a major influence on the physical properties of the material. Th...
    Disponible

    84,22 €

  • N-based heterocyclic analogues and their application
    Dhaval B. Patel
    This book describes series of quinoline hybrid thiosemicarbazide derivatives under microwave irradiation. Synthesized compounds were successfully applied against the biological studies. The docking study suggested that selected molecules were perfect, fit into the protein cavity with excellent G-score. Molecular dynamics study with protein (PDB: 3JSU) studied in Schrodinger sof...
    Disponible

    72,08 €

  • Quinoline Derivatives and Their Application
    Dhaval Patel
    In this book author has described a series of new 2-(2-chlorophenyl)quinoline-4-carboxylic acid based thiosemicarbazide were synthesized in extremely good yields. Synthesized derivatives were characterized by spectral studies 1H NMR, 13C NMR, mass spectrometry, IR analysis, elemental analyses and physical studies Melting points. All the newly synthesized compounds were screened...
    Disponible

    72,14 €

  • The Wonders of Chemistry
    Kenneth Caraballo
    Chemistry is a fundamental science that underlies our understanding of the natural world. From the air we breathe to the food we eat, chemistry plays a vital role in our daily lives. Yet, it can often seem like an intimidating subject for students. "The Wonders of Chemistry" aims to change that by providing a comprehensive guide to the subject that is accessible and engaging.Th...
    Disponible

    33,71 €

  • 10 THING MUST KNOW ICHO (REV ED)
    Fun Man Fung / I-Jy Chang / I-JY CHANG CHANG & FUN MAN FUNG
    This is a book dedicated to special groups in the community whom we reach out to promote chemistry interest and learning chemistry. It will be immensely useful to students, parents who are interested in Science Olympiads, Chemistry Olympiad, chemistry instructors at the secondary and collegiate level, and other science instructors at the secondary and collegiate level.This is a...
    Disponible

    70,78 €

  • Synthesis and Antimicrobial Evaluation of Benzimidazolium Salicylate
    K. Sakthivel / P. Kavitha / R. Menaka
    One of the most interesting feature of organic frame work or crystal growth is proton conducting pathway within the ionic channels. Crystal growth is the major stage of crystallization process. The growth method is important because it suggest the impurity and other defect concentration. Among the various methods slow evaporation method is keen interest due to low temperature s...
    Disponible

    61,57 €

  • Estimation of Citric Acid and Sugar Content,
    Yohannes SHUKA JARA
    The majority of individuals who consume fresh fruit, such as lime, sweet lemon, mango, and pineapple, do not take into account the nutritional analyses of the juice composition, citric acid content, total soluble solids, and sugar concentration and its nutritional qualities. The goal of the investigation was to look at the nutritional analyses of the selected acidic and sub-aci...
    Disponible

    61,51 €

  • Synthesis and Application of N-based Heterocyclic Compounds
    Dhaval B. Patel
    In this book, we have a described novel series of fluorine containing quinoline hybrid thiosemicarbazide analogues (8a-8l) by modern medicinal chemistry and have led to large number of effective drugs. We have synthesized novel fluorine containing quinoline hybrid thiosemicarbazide analogues and tested for their in-vitro study in antibacterial, antifungal, antimalarial, antitub...
    Disponible

    72,27 €

  • Synthesis and Computational Applicaton of Quinoline
    Dhaval B. Patel
    In summary, this work demonstrates the designing, synthesis and biological evaluation of novel 2-(2-chlorophenyl)quinoline-4-carboxylic acid hybrid thiosemicarbazides. The synthesized derivatives were evaluated for their variousin-vitro biological activities. Most of the compounds displayed excellent activity against gram-positive bacteria in comparison to gram-negative bacteri...
    Disponible

    71,96 €

  • Computational Study of Quinoline-4-carboxylic acid and application
    Dhaval B. Patel / Hitesh D. Patel / Siddharth S. Patel
    Novel fluorine containing quinoline hybrid thiosemicarbazide analogues and screened for their in-vitrostudy in antibacterial, antifungal, antimalarial, antituberculosis strains. Analogues were active against antimalarial Plasmodium falciparum strain, among them analogues 8d, 8g, 8h, 8k and 8l shown remarkable activity than reference drug Quinine. We have carried out Molecular d...
    Disponible

    61,82 €

  • Synthesis of Quinolinic acid and Biologicals Applications
    Dhaval B. Patel
    In this book we have established a novel series of 2-(2-chlorophenyl)quinoline-4-carboxylic acid based thiosemicarbazide derivatives all compounds are conforming by their physical data (melting point) and spectral data (Mass analysis , 1H NMR, 13C NMR). All compounds are analyzing in antibacterial and antifungal Biological activity. In biological analysis we have found that man...
    Disponible

    61,63 €

  • Fabrication of Nanocomposites and their Photocatalytic activity
    G. Arivalagan / K. Shahul Hameed / S. Sivakumar
    This book comprises the fabrication of nanocomposites synthesized by a simple hydrothermal method and characterized by UV-visible, DRS, SEM, and TEM analysis. The photocatalytic activity of the synthesized nanocomposites was evaluated for the degradation of phenol. The photo-induced electron hole pair recombination retards the photocatalytic reaction, which was confirmed by the...
    Disponible

    61,63 €

  • SYNTHESIS AND INVITRO BIOLOGICAL POTENTIAL OF THIOPHENE DERIVATIVE
    Prabhakar Kumar Verma
    Thiophene and its derivatives recently attracted researchers in exploring their potential as antioxidant agents (Madhavi et al., 2017). The main purpose of antioxidant is to neutralizes free radicals, which scavenge reactive oxygen species, may be high potent value in preventing the onset and propagation of oxidative diseases like neurovascular, autoimmune and cardiovascular di...
    Disponible

    61,51 €

  • Synthesis and Biological Activity of Quinoline-4-Carboxylic Acid
    Dhaval B. Patel / Hitesh D. Patel / Siddharth S. Patel
    We have synthesized a series of quinoline hybrid thiosemicarbazide derivatives under microwave irradiation. Synthesized compounds were successfully applied against the biological studies. Compounds 7a, 7g, 7k exhibited potent activity againstP. aeruginosa, compounds 7a, 7f,7h,7r showed excellent activity against E.coli, compounds 7a, 7b, 7c, 7e, 7f, 7l, 7o, 7p, 7q and 7sexhibit...
    Disponible

    61,63 €

  • Green Synthesis of Heterocyclic Compounds
    Rishikesh Kumar / Sarbasri Nath
    Heterocyclic Compounds from the basis of most of the medicinal compounds in Chemistry. Heterocyclic compounds still tempt organic chemists in search of new and more effective therapeutic agents. At the time of carrying out the ring transformation synthesis, safer reagents, use of green catalysts, and employing microwave-induced synthesis whenever possible to reduce the use of t...
    Disponible

    97,40 €

  • The ionic content in atmospheric fine particles
    Flávia Marquezini / M. Cristina Solci
    Samples of fine atmospheric particulate matter (APM) were collected in Londrina/PR and Assis/SP and analysed in order to investigate the correlation between soluble ionic species from anthropogenic sources (nitrate and sulphate). Secondary ions such as chloride, nitrate and sulfate were measured using ion chromatography. Diagnostic ratios (DR) were calculated indicating the sig...
    Disponible

    53,60 €


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