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Sample Preparation Techniques for Chemical Analysis / / edited by Massoud Kaykhaii
| Sample Preparation Techniques for Chemical Analysis / / edited by Massoud Kaykhaii |
| Pubbl/distr/stampa | London : , : IntechOpen, , 2021 |
| Descrizione fisica | 1 online resource (108 pages) |
| Disciplina | 543.19 |
| Soggetto topico | Sample preparation (Chemistry) |
| ISBN | 1-83969-215-4 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910586666703321 |
| London : , : IntechOpen, , 2021 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Sample preparation techniques for chemical analysis / / Massoud Kaykhaii, editor
| Sample preparation techniques for chemical analysis / / Massoud Kaykhaii, editor |
| Pubbl/distr/stampa | London : , : IntechOpen, , 2021 |
| Descrizione fisica | 1 online resource (108 pages) |
| Disciplina | 543.19 |
| Soggetto topico | Sample preparation (Chemistry) |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910688440803321 |
| London : , : IntechOpen, , 2021 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Split and splitless injection for quantitative gas chromatography : concepts, processes, practical guidelines, sources of error / / Konrad Grob
| Split and splitless injection for quantitative gas chromatography : concepts, processes, practical guidelines, sources of error / / Konrad Grob |
| Autore | Grob Konrad |
| Edizione | [Fourth, completely revised edition.] |
| Pubbl/distr/stampa | Weinheim, [Germany] : , : Wiley-VCH, , 2001 |
| Descrizione fisica | 1 online resource (482 p.) |
| Disciplina |
543.0896
543.19 |
| Altri autori (Persone) | GrobKonrad |
| Soggetto topico |
Gas chromatography - Methodology
Sample introduction (Chemistry) |
| Soggetto genere / forma | Electronic books. |
| ISBN |
1-282-01033-6
9786612010330 3-527-61287-4 3-527-61288-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Split and Splitless Injection for Quantitative Gas Chromatography; Contents; A Syringe Injection into Hot Vaporizing Chambers; 1. Introduction; 1.1. Syringe Injection; 1.2. Sample Evaporation inside the Needle; 1.2.1. Inaccurate Sample Volume; 1.2.2. Discrimination against High Boilers; 1.2.3. Poor Reproducibility; 1.2.4. Degradation of Labile Solutes; 1.3. Conclusions; 1.3.1. Fast Autosampler?; 1.3.2. Suppressing Evaporation inside the Needle; 1.3.3. Thermospray; 2 . Syringes; 2.1. Plunger-in-Barrel Syringes; 2.1.1. Plungers; 2.1.2. Plunger Guides; 2.2. Plunger-in-Needle Syringes
2.3. Syringe Needles2.3.1. Dimensions; 2.3.2. Needle Tips; 2.3.3. Fixed versus Removable Needles; 2.4. Cleaning of Syringes; 2.4.1. Basic Rules; 2.4.2. Cleaning Procedures; 2.4.3. Plugged Needles; 2.4.4. Blocked Plungers; 3 . Evaporation Inside the Needle; 3.1. The Three-Step Model; 3.2. Models of Evaporation inside the Needle; 3.2.1. Distillation from the Needle; 3.2.2. Gas Chromatography in the Needle; 3.2.3. Ejection from the Needle; 3.3. Conclusions Regarding Optimized Injection; 4 . How Much is Really Injected?; 4.1. Interpretations of ""Sample Volume"" 4.2. Communicating ""Sample Volumes''4.3. Effects on Quantitative Analysis; 5 . Syringe Needle Handling Minimizing Discrimination; 5.1. Definitions of Techniques; 5.2. Experimental Determination of Losses in the Needle; 5.2.1. Method with Two Instruments; 5.2.2. Experiment with a Single Instrument; 5.2.3. Test During Routine Analysis; 5.3. Comparison of Needle Handling Techniques; 5.3.1. Filled Needle Injection; 5.3.2. Slow Injection; 5.3.3. Cool Needle Injection; 5.3.4. Hot Needle Injection; 5.3.5. Solvent Flush Injection; 5.3.6. Air Plug Injection; 5.3.7. Sandwich Injection 5.4. Heating the Needle after Injection?5.5. Effect of Injecting Air; 5.5.1. Concerns Regarding the Column; 5.5.2. Detectors; 5.5.3. Oxidized Sample; 6 . Dependence of Discrimination on Sample Volume; 6.1. Experimental Results; 6.2. Discussion of Mechanism; 6.3. Conclusions; 7 . Solvent and Solutes; 7.1. Volatility of the Solvent; 7.2. Type of Solute; 7.3. Adsorption in the Syringe Needle; 7.4. ""Memory Effects"" Arising from the Syringe; 8 . Injector Temperature; 8.1. Imposed Temperature; 8.2. Temperature Gradient Towards the Septum; 8.2.1. Critical Rear of Needle 8.2.2. Actual Temperature Profiles8.2.3. Effect on Discrimination; 8.2.4. Quantitative Results Differing from One Injector to Another; 8.2.5. Conclusions; 8.3. Themostability of Septa; 8.3.1. Upper Temperature Limit; 8.3.2. Some Tips; 9 . Plunger-in-Needle Syringes; 9.1. Accuracy of Sample Volume; 9.2. Premature Expulsion; 10 . Possibilities of Avoiding Evaporation in the Needle; 10.1. High Boiling Sample Matrix; 10.1.1. Injector Temperature versus Solvent Boiling Point; 10.1.2. Practical Aspects; 10.2. Cooled Septum; 10.3. Cooled Needle Technique; 10.4. Fast Injection by Autosampler 10.5. Evaporation in the Injector |
| Record Nr. | UNINA-9910143970003321 |
Grob Konrad
|
||
| Weinheim, [Germany] : , : Wiley-VCH, , 2001 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Split and splitless injection for quantitative gas chromatography : concepts, processes, practical guidelines, sources of error / / Konrad Grob
| Split and splitless injection for quantitative gas chromatography : concepts, processes, practical guidelines, sources of error / / Konrad Grob |
| Autore | Grob Konrad |
| Edizione | [Fourth, completely revised edition.] |
| Pubbl/distr/stampa | Weinheim, [Germany] : , : Wiley-VCH, , 2001 |
| Descrizione fisica | 1 online resource (482 p.) |
| Disciplina |
543.0896
543.19 |
| Altri autori (Persone) | GrobKonrad |
| Soggetto topico |
Gas chromatography - Methodology
Sample introduction (Chemistry) |
| ISBN |
1-282-01033-6
9786612010330 3-527-61287-4 3-527-61288-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Split and Splitless Injection for Quantitative Gas Chromatography; Contents; A Syringe Injection into Hot Vaporizing Chambers; 1. Introduction; 1.1. Syringe Injection; 1.2. Sample Evaporation inside the Needle; 1.2.1. Inaccurate Sample Volume; 1.2.2. Discrimination against High Boilers; 1.2.3. Poor Reproducibility; 1.2.4. Degradation of Labile Solutes; 1.3. Conclusions; 1.3.1. Fast Autosampler?; 1.3.2. Suppressing Evaporation inside the Needle; 1.3.3. Thermospray; 2 . Syringes; 2.1. Plunger-in-Barrel Syringes; 2.1.1. Plungers; 2.1.2. Plunger Guides; 2.2. Plunger-in-Needle Syringes
2.3. Syringe Needles2.3.1. Dimensions; 2.3.2. Needle Tips; 2.3.3. Fixed versus Removable Needles; 2.4. Cleaning of Syringes; 2.4.1. Basic Rules; 2.4.2. Cleaning Procedures; 2.4.3. Plugged Needles; 2.4.4. Blocked Plungers; 3 . Evaporation Inside the Needle; 3.1. The Three-Step Model; 3.2. Models of Evaporation inside the Needle; 3.2.1. Distillation from the Needle; 3.2.2. Gas Chromatography in the Needle; 3.2.3. Ejection from the Needle; 3.3. Conclusions Regarding Optimized Injection; 4 . How Much is Really Injected?; 4.1. Interpretations of ""Sample Volume"" 4.2. Communicating ""Sample Volumes''4.3. Effects on Quantitative Analysis; 5 . Syringe Needle Handling Minimizing Discrimination; 5.1. Definitions of Techniques; 5.2. Experimental Determination of Losses in the Needle; 5.2.1. Method with Two Instruments; 5.2.2. Experiment with a Single Instrument; 5.2.3. Test During Routine Analysis; 5.3. Comparison of Needle Handling Techniques; 5.3.1. Filled Needle Injection; 5.3.2. Slow Injection; 5.3.3. Cool Needle Injection; 5.3.4. Hot Needle Injection; 5.3.5. Solvent Flush Injection; 5.3.6. Air Plug Injection; 5.3.7. Sandwich Injection 5.4. Heating the Needle after Injection?5.5. Effect of Injecting Air; 5.5.1. Concerns Regarding the Column; 5.5.2. Detectors; 5.5.3. Oxidized Sample; 6 . Dependence of Discrimination on Sample Volume; 6.1. Experimental Results; 6.2. Discussion of Mechanism; 6.3. Conclusions; 7 . Solvent and Solutes; 7.1. Volatility of the Solvent; 7.2. Type of Solute; 7.3. Adsorption in the Syringe Needle; 7.4. ""Memory Effects"" Arising from the Syringe; 8 . Injector Temperature; 8.1. Imposed Temperature; 8.2. Temperature Gradient Towards the Septum; 8.2.1. Critical Rear of Needle 8.2.2. Actual Temperature Profiles8.2.3. Effect on Discrimination; 8.2.4. Quantitative Results Differing from One Injector to Another; 8.2.5. Conclusions; 8.3. Themostability of Septa; 8.3.1. Upper Temperature Limit; 8.3.2. Some Tips; 9 . Plunger-in-Needle Syringes; 9.1. Accuracy of Sample Volume; 9.2. Premature Expulsion; 10 . Possibilities of Avoiding Evaporation in the Needle; 10.1. High Boiling Sample Matrix; 10.1.1. Injector Temperature versus Solvent Boiling Point; 10.1.2. Practical Aspects; 10.2. Cooled Septum; 10.3. Cooled Needle Technique; 10.4. Fast Injection by Autosampler 10.5. Evaporation in the Injector |
| Record Nr. | UNINA-9910830472003321 |
|
Grob Konrad
|
||
| Weinheim, [Germany] : , : Wiley-VCH, , 2001 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Supporting sampling and sample preparation tools for isotope and nuclear analysis
| Supporting sampling and sample preparation tools for isotope and nuclear analysis |
| Pubbl/distr/stampa | Vienna, Austria : , : International Atomic Energy Agency, , 2016 |
| Descrizione fisica | 1 online resource (61 pages) : color illustrations, photographs |
| Disciplina | 543.19 |
| Collana | IAEA TECDOC Series |
| Soggetto topico |
Sample preparation (Chemistry)
Soils - Sampling - Technique |
| ISBN | 92-0-126919-6 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910792981303321 |
| Vienna, Austria : , : International Atomic Energy Agency, , 2016 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Supporting sampling and sample preparation tools for isotope and nuclear analysis
| Supporting sampling and sample preparation tools for isotope and nuclear analysis |
| Pubbl/distr/stampa | Vienna, Austria : , : International Atomic Energy Agency, , 2016 |
| Descrizione fisica | 1 online resource (61 pages) : color illustrations, photographs |
| Disciplina | 543.19 |
| Collana | IAEA TECDOC Series |
| Soggetto topico |
Sample preparation (Chemistry)
Soils - Sampling - Technique |
| ISBN | 92-0-126919-6 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910815148803321 |
| Vienna, Austria : , : International Atomic Energy Agency, , 2016 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Trace determination of pesticides and their degradation products in water / Damia Barceló, Marie-Claire Hennion
| Trace determination of pesticides and their degradation products in water / Damia Barceló, Marie-Claire Hennion |
| Autore | Barceló, Damià |
| Pubbl/distr/stampa | Amsterdam : Elsevier, 1997 |
| Descrizione fisica | XIII, 542 p. : ill. ; 25 cm. |
| Disciplina | 543.19(Chimica analitica. Strumentazione) |
| Altri autori (Persone) | Hennion, Marie-Claire |
| ISBN | 04-448-1842-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNICAMPANIA-SUN0064304 |
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Barceló, Damià
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| Amsterdam : Elsevier, 1997 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Vanvitelli | ||
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Trace determination of pesticides and their degradation products in water / Damia Barceló, Marie-Claire Hennion
| Trace determination of pesticides and their degradation products in water / Damia Barceló, Marie-Claire Hennion |
| Autore | Barceló, Damià |
| Pubbl/distr/stampa | Amsterdam, : Elsevier, 1997 |
| Descrizione fisica | XIII, 542 p. : ill. ; 25 cm |
| Disciplina | 543.19(Chimica analitica. Strumentazione) |
| Altri autori (Persone) | Hennion, Marie-Claire |
| ISBN | 04-448-1842-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNICAMPANIA-VAN0064304 |
|
Barceló, Damià
|
||
| Amsterdam, : Elsevier, 1997 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Vanvitelli | ||
| ||
Trace residue analysis chemometric estimations of sampling, amount, and error / David A. Kurtz, editor
| Trace residue analysis chemometric estimations of sampling, amount, and error / David A. Kurtz, editor |
| Pubbl/distr/stampa | Washington : American Chemical Society, 1985 |
| Descrizione fisica | X, 284 p. : ill. ; 24 cm. |
| Disciplina | 543.19 |
| Collana | ACS symposium series |
| Soggetto topico | Chimica analitica - Metodi statistici - Analisi |
| ISBN | 0-8412-0925-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNIBAS-000006075 |
| Washington : American Chemical Society, 1985 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. della Basilicata | ||
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