Gas Chromatography in Air Pollution Analysis

摘要: Chapter 1. Introduction. 2. Air as an Object of Analysis. Atmospheric air and sources atmospheric pollution. General characteristics pollutants. Specific features object analysis. 3. Gas Chromatography in the Analysis Pollutants. considerations. Peculiarities gas chromatographic analysis impurities. 4. Detectors for Chromatographic Determination Impurities. Principal detectors chromatography. Flame ionization detector. Thermionic Photoionization Electron-capture photometric The thermal energy analyser ( TEA ) direct identification Hall electrolitic 5. Collection Pretreatment Samples Sampling into containers. Use absorption contaminants sample collection. Cryogenic concentration contaminants. adsorption contaminant concentration. Multilayer sorption traps. Sorbents passive sampling. Chemisorbents. Trapping solid particles aerosols. Preparation tubes containing sorbent. Influence sampling conditions on efficiency Desorption pollutants from experimental completeness recovery Increase desorption efficiency. Choice methods. Metrological aspects pollutant determination by 6. Reactive-Sorption Method its Application Concentrating Concentration adsorbents. Reactive-sorption reactive-sorption method to enhance reliability Diminution coadsorption Improvement separation. Moisture removal. Identification Conclusions. 7. Quantitative Methods standard mixtures. Detector calibration. Calculation impurity concentrations. Detection limits 8. Practical Carbon oxides. Halides their derivatives. Nitrogen-containing compounds. Sulphur- phosphorus-containing Metals Low-boiling hydrocarbons. Aromatic Polyaromatic Organic oxy Amines nitro Odorants. Halogenated Freons. Chlorine-containing pesticides, polychlorobiphenyls dioxins. Bis( chloromethyl ether. Vinyl chloride. Conclusion. Each chapter contains References.