دانلود کتاب Sustainable Chemistry Research. Volume 3: Analytical Aspects

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Cover
Half Title
Also of interest
Sustainable Chemistry Research. Volume 3: Analytical Aspects
Copyright
Preface of the Book of Proceedings of the Virtual Conference on Chemistry and its Applications (VCCA-2021)
Contents
List of contributing authors
1. The Cambridge structural database (CSD): important resources for teaching concepts in structural chemistry and intermolecular interactions
Abstract
1.1 Introduction
1.2 Methodology
1.2.1 ConQuest Program
1.2.2 Mercury Program
1.3 Results and discussion
1.4 Conclusions
References
2. The vital use of isocyanide-based multicomponent reactions (MCR) in chemical synthesis
2.1 Introduction to multicomponent reactions
2.2 Strecker reaction (S-3CR)
2.3 Hantzsch reaction (H-3CR)
2.4 Biginelli reaction (B-3CR)
2.5 Mannich three component reaction (M-3CR)
2.6 Passerini reaction (P-3CR)
2.6.1 Substrate scope in the Passerini reactions
2.6.2 Chirality in Passerini reactions
2.7 Ugi reaction: U-4CR and U-3CR
2.7.1 Ugi-four component reaction (U-4CR)
2.7.2 Ugi-three component reaction (U-3CR)
2.8 van leusen reaction (V-3CR)
2.9 The application of dimethyl acetylenedicarboxylate in organic synthesis
2.9.1 DMAD and isocyanides in multicomponent reactions
2.9.2 DMAD in Michael reactions
2.9.3 DMAD in cycloaddition reactions
2.10 Conclusions
References
3. Spectral peak areas do not vary according to spectral averaging scheme used in functional MRS experiments at 3 T with interleaved visual stimulation
Abstract
3.1 Introduction
3.2 Methodology
3.2.1 Study volunteers
3.2.2 Presentation of visual stimulus
3.2.3 Functional MRI
3.2.4 Functional MRS
3.2.5 Spectral analysis
3.2.6 Quantification of the BOLD effects on the spectra
3.2.7 Statistical analysis
3.3 Results
3.3.1 Single stimulation experiments
3.3.2 Interleaved stimulation experiments
3.4 Discussion
3.5 Conclusions
References
4. A comparative assessment of potentially harmful metals in the Lagos Lagoon and Ogun river catchment
Abstract
4.1 Introduction
4.2 Materials and methods
4.2.1 Materials and reagents
4.2.2 Study area
4.2.3 Sampling and sample preparation
4.2.3.1 Water samples
4.2.3.2 Sediments samples
4.2.3.3 Quality assurance
4.2.3.4 FAAS analysis
4.2.3.5 pH, TDS and EC
4.2.3.6 Statistical analysis
4.3 Results and discussion
4.4 Conclusions
References
5. XRD and cytotoxicity assay of submitted nanomaterial industrial samples in the Philippines
Abstract
5.1 Introduction
5.2 Methods
5.2.1 X-ray diffraction
5.2.2 MTT cytotoxicity assay
5.3 Discussion
5.3.1 Analysis of X-ray diffraction patterns for select nanoparticle samples
5.3.1.1 TiO2
5.3.1.2 Halloysite
5.3.1.3 Bentonite
5.3.1.4 AgNP
5.3.1.5 CaCO3
5.3.2 MTT cytotoxicity assay
5.3.2.1 TiO2
5.3.2.2 AgNP
5.3.2.3 Bentonite
5.3.2.4 Halloysite
5.3.2.5 SiO2
5.3.2.6 ZnO
5.3.2.7 CNT and MWCNT
5.3.2.8 CaCO3
5.4 Conclusions
References
6. Pine bark crosslinked to cyclodextrin for the adsorption of 2-nitrophenol from an aqueous solution
6.1 Introduction
6.2 Experimental
6.2.1 Materials
6.2.2 Procedures
6.2.2.1 Preparation and treatment of pine bark using NaOH
6.2.2.2 Crosslinking of cyclodextrin with pine bark using hexamethylene diisocyanate
6.2.2.3 Sample characterization
6.2.2.4 Batch adsorption experiments for the removal of 2-nitrophenol
6.3 Results and discussion
6.3.1 Adsorbent characterization
6.3.2 Adsorption studies
6.3.2.1 Effect of solution pH on the adsorption 2-nitrophenol
6.3.2.2 Effect of adsorbent dose
6.3.2.3 Effect of contact time on the adsorption of 2-nitrophenol onto PB and PB-CD
6.3.2.4 Kinetics for 2-nitrophenol adsorption onto PB and PB-CD
6.3.2.5 Equilibrium modelling
6.3.2.6 Regeneration
6.3.2.7 Comparison of MNP-OA nanocomposite with other adsorbents
6.4 Conclusions
References
7. Concentration evaluation and risk assessment of pesticide residues in selected vegetables sold in major markets of Port Harcourt South-South Nigeria
7.1 Introduction
7.2 Methodology
7.2.1 Sample collection and preparation
7.2.2 Chemicals
7.2.3 Extraction of pesticide residues from samples
7.2.4 Clean-up
7.2.5 Analysis of organochlorine and organophosphate pesticides
7.2.6 Quality control
7.2.7 Statistical analysis
7.2.8 Risk assessment
7.2.8.1 Noncarcinogenic assessment
7.2.8.2 Carcinogenic assessment
7.3 Results and discussion
7.3.1 Concentration of organochlorine and organophosphate pesticides in vegetables
7.3.2 Noncarcinogenic assessment
7.3.3 Carcinogenic risk assessment
7.4 Conclusions
References
8. Detection of iodine in aqueous extract of plants through modified Mohr’s method
8.1 Introduction
8.2 Materials and methods
8.2.1 Collection of Ipomoea pes-caprae from three coastal sites
8.2.2 Preparation of plant samples for analysis of bioactive iodine
8.2.3 Standard curve of KI
8.2.4 Chemical analysis of iodine
8.2.5 Separation of iodine
8.2.6 Determining LOD and LOQ
8.3 Results and discussion
8.4 Conclusions
References
9. Appraisal and health risk assessment of potential toxic element in fruits and vegetables from three markets in Anambra state, Nigeria
9.1 Introduction
9.2 Materials and methods
9.2.1 Study area
9.2.2 Sample collection
9.2.3 Digestion of soil samples
9.2.4 Digestion of fruits and vegetables samples
9.2.5 Health risk assessment
9.2.6 Statistical analysis
9.3 Results and discussion
9.3.1 Concentrations of potential toxic elements in soil
9.3.2 Concentrations of potential toxic elements (mg/kg) in fruits and vegetables in Atani market
9.3.3 Concentrations of potential toxic elements (mg/kg) in fruits and vegetables in Omor market
9.3.4 Concentrations of potential toxic element (mg/kg) in fruits and vegetables in Eke Awka market
9.3.5 Implication of potential toxic element concentration in plants
9.3.6 Health risk assessment
9.4 Conclusions
Supplementary Material
References
10. Complexes of a model trimeric acylphloroglucinolwithaCu2+ion:aDFTstudy
10.1 Introduction
10.2 Computational details
10.3 Results
10.3.1 Selection and geometry of the calculated complexes
10.3.1.1 Input and optimised geometries
10.3.1.2 Analysis criteria for relevant properties
10.3.2 Energetics of the calculated complexes
10.3.2.1 The complexes’ relative energies
10.3.2.2 The molecule-ion affinity
10.3.2.3 Influence of the addition of the Grimme’s dispersion correction on energyrelated estimations
10.3.3 Properties of the ion in the complexes
10.3.3.1 The charge on the ion in the complexes
10.3.3.2 The Mulliken spin density on the ion in the complexes
10.3.4 How closely the ion approaches the molecule
10.3.5 Effectsof complexation on the intramolecular hydrogen bonds
10.3.6 Other molecular properties of the complexes
10.3.6.1 HOMO–LUMO energy gap of the complexes
10.3.6.2 Dipole moment of the complexes
10.3.7 Discussion and conclusions
References
11. Mechanochemistry as a green method in organic chemistry and its its applications
11.1 Introduction
11.2 Mechanochemistry
11.3 Synthetic applications
11.4 Future prospects
11.5 Conclusions
References
12. Maximizing advantages and minimizing misinterpretation risks when using analogies in the presentation of chemistry concepts: a design challenge
Abstract
12.1 Introduction
12.1.1 Analogies as an expression, emphasising and clarification tool
12.1.2 Analogies in education and in chemistry education
12.2 Analogies in chemistry teaching: examples and reflections
12.2.1 Models, visualization and analogies
12.2.2 When an analogy fails its purpose
12.2.3 Designing analogies in the classroom
12.3 Discussion
12.4 Conclusions
References
Index