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Record Nr. |
UNINA9910829093403321 |
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Autore |
Silva Elipe Maria V. <1963-> |
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Titolo |
LC-NMR and other hyphenated NMR techniques : overview and applications / / Maria Victoria Silva Elipe |
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Pubbl/distr/stampa |
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Hoboken, NJ, : Wiley, c2012 |
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ISBN |
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1-283-33226-4 |
9786613332264 |
1-118-13538-5 |
1-118-13539-3 |
1-118-13536-9 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (240 p.) |
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Collana |
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Classificazione |
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Disciplina |
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Soggetti |
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Nuclear magnetic resonance spectroscopy - Industrial applications |
Organic compounds - Analysis |
Drug development |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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LC-NMR and Other Hyphenated NMR Techniques: Overview and Applications; Contents; Preface; Abbreviations, Symbols, and Units; 1. Basic Concepts of NMR Spectroscopy; 1.1 Introduction; 1.2 Basic Knowledge Regarding the Physics of NMR Spectroscopy; 1.3 Basic Parameters for NMR Interpretation; 1.3.1 Chemical Shift; 1.3.2 Spin-Spin Coupling Constants; 1.3.3 Spin Systems; 1.3.4 Signal Intensities; 1.3.5 Bond Correlations; 1.3.6 Spatial Correlations; 1.3.7 Other Topics; 1.4 Conclusions; References; 2. Historical Development of NMR and LC-NMR; 2.1 Introduction; 2.2 Historical Development of NMR |
2.3 Historical Development of LC-NMR2.4 Historical Development of Other Analytical Techniques Hyphenated with NMR; 2.5 Current Trends; References; 3. Basic Technical Aspects and Operation of LC-NMR and LC-MS-NMR; 3.1 Introduction; 3.2 Technical Considerations Regarding LC-NMR; 3.2.1 Solvent Compatibility; 3.2.2 Solvent Suppression; 3.2.3 NMR Flow Cell; 3.2.4 LC-NMR Sensitivity; 3.3 Technical Considerations Regarding LC-MS-NMR; 3.3.1 Deuterated Solvents; 3.4 Modes of Operation of LC-NMR; 3.4.1 On-Flow Mode; 3.4.2 Stop-Flow Mode; |
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3.4.3 Time-Sliced Mode; 3.4.4 Loop Collection Mode |
3.5 Modes of Operation of LC-MS-NMR3.5.1 On-Flow Mode; 3.5.2 Stop-Flow Mode; 3.6 Other Modes of Operation; 3.7 Challenging Considerations; 3.7.1 Air Bubbles; 3.7.2 Carryover with and Without an Autosampler; 3.7.3 Sample Solubility and Precipitation; 3.7.4 Flow Cell and System Cleaning; 3.7.5 Flow Rate and Magnetic Susceptibility; 3.7.6 Quantitation; 3.8 Conclusions; References; 4. Applications of LC-NMR; 4.1 Introduction; 4.2 Applications of LC-NMR; 4.2.1 Natural Products; 4.2.2 Drug Metabolism; 4.2.3 Drug Discovery; 4.2.4 Impurity Characterization; 4.2.5 Degradation Products |
4.2.6 Food Analysis4.2.7 Polymers; 4.2.8 Metabolomics and Metabonomics; 4.2.9 Isomers, Tautomers, and Chiral Compounds; 4.2.10 Others Areas; 4.3 Conclusions and Future Trends; References; 5. Applications of LC-MS-NMR; 5.1 Introduction; 5.2 Applications of LC-MS-NMR; 5.2.1 Natural Products; 5.2.2 Drug Metabolism; 5.2.3 Drug Discovery and Development; 5.2.4 Metabolomics and Metabonomics; 5.2.5 Others Areas; 5.3 Conclusions and Future Trends; References; 6. Hyphenation of NMR with Other Analytical Separation Techniques; 6.1 Introduction; 6.2 GC-NMR; 6.3 GPC-NMR; 6.4 SEC-NMR; 6.5 SFC-NMR |
6.6 SFE-NMR6.7 CE-NMR; 6.8 CEC-NMR; 6.9 CZE-NMR; 6.10 cITP-NMR; 6.11 CapLC-NMR; 6.12 SPE-NMR; 6.13 SPE-MS-NMR; 6.14 Conclusions and Future Trends; References; 7. Special Topics and Applications Related to LC-NMR; 7.1 Introduction; 7.2 Off-Line Versus Online NMR for Structural Elucidation; 7.2.1 Cases Solved Off-Line; 7.2.2 Cases Solved Online; 7.3 Analysis of Chiral Molecules by NMR; 7.3.1 Classical Approach: Off-Line; 7.3.2 Nonclassical Approach: Online; 7.4 Monitoring Chemical Reactions In Situ; 7.4.1 Classical Approach: Off-Line; 7.4.2 Nonclassical Approach: Online |
7.5 Analysis of Mixtures Off-Line, Online, and by Other NMR Methodologies |
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Sommario/riassunto |
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This practical guide provides a basic overview of the pros and cons of NMR spectroscopy as both a hyphenated and non-hyphenated technique. The book begins with a description of basic NMR concepts for the structural elucidation of organic compounds and then details the historical development of NMR and hyphenated NMR in the structural elucidation world, followed by applications of hyphenated NMR as LC-NMR and LC-MS-NMR in industry and academia. It also contains updated information on the latest advancements and applications of LC-NMR in such areas as degradation products, drug metabolism, food |
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2. |
Record Nr. |
UNINA9910969260803321 |
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Autore |
Terkper Seth |
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Titolo |
Accounting Challenges for Semi-Autonomous Revenue Agencies in Developing Countries / / Seth Terkper |
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Pubbl/distr/stampa |
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Washington, D.C. : , : International Monetary Fund, , 2008 |
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ISBN |
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9786612840708 |
9781462332595 |
1462332595 |
9781452719825 |
1452719829 |
9781282840706 |
1282840703 |
9781451869767 |
1451869762 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (28 p.) |
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Collana |
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IMF Working Papers |
IMF working paper ; ; WP/08/116 |
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Disciplina |
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Soggetti |
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Accounting - Standards |
Financial statements - Standards |
Tax administration and procedure |
Accounting |
Accrual accounting |
Budget planning and preparation |
Budget Systems |
Budget |
Budgeting & financial management |
Budgeting |
Finance, Public |
Financial reporting, financial statements |
Financial statements |
Fiscal accounting and reporting |
Income |
Macroeconomics |
National Budget |
Personal income |
Personal Income, Wealth, and Their Distributions |
Public Administration |
Public finance accounting |
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Public Sector Accounting and Audits |
South Africa |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Contents; I. Introduction; II. Institutional and Regulatory Framework; A. Nature of Semi-Autonomy; B. Potential Benefits in Keeping Separate SARA Records; Boxes; 1 South African Revenue Service (SARS) Accounting Requirements; C. Regulatory Framework; D. Basic Tax and Treasury Accounting Systems; Table; 1. Summary of records kept by tax agencies; E. Automated Accounting Systems; III. Nature of Tax Office Accounting; A. Nature of Tax Transactions; B. Meaning of Full Accrual Accounting; C. SARA Accounting Records; IV. Recording and Reporting Rules; 2. HMRC's Resource, Trust and Program Records |
A. Revenue TransactionsB. Operating Income Rules; 3. Some SARA Budget Issues; C. Operating Expense Rules; D. Investing and Financing Activities; E. Program Activities; 4. Some Key Fixed Asset (FA) Issues; V. SARA Reporting Obligations; A. Simple Cash Statements; B. Complex Financial Statements; C. Program Statements; D. Consolidated Financial Statements; VI. Conclusion; References |
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Sommario/riassunto |
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The paper discusses the improvements which a semi-autonomous revenue agency (SARA) must make to its records to meet fiscal and financial accounting obligations. SARAs are legal entities, such as a service or a department, which are required to prepare accrual records that may diverge from a treasury's cash accounting records. Their records reflect revenues generated; budget funds for generating the revenues; and material programs administered for other agencies. The accounting records and financial statements (income statement, balance sheet and cash flow statement) must conform to generally-accepted accounting principles (GAAPs) or standards such as the International Public Sector Accounting Standards (IPSAS) of the International Federation of Accountants (IFAC)-and to the treatment of operating, investment and financing activities in the Government Finance Statistics (GFS) Manual. |
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