SPLIT INJECTION. The Split Ratio. Sample Concentration Suitable for Split Injection. Initial Band Widths in Split Injection. Split Injection for Fast Analysis. Analysis Requiring Maximum Sensitivity. High Split Ratios for Reducing the Sample Size. Sample Evaporation in the Injector. Vaporizing Chamber. Problems Concerning the Split Ratio. Problems Concerning Linearity of Splitting. Techniques for Improving Quantitative Analysis. Injector Design. General Evaluation of Split Injection. References A. SPLITLESS INJECTION. How to Perform Splitless Injection. Sample Volumes Suitable for Splitless Injection. Splitless Injection of Large Volumes by the Overflow Technique. Injector Design. Sample Transfer into the Column. Shape of Initial Bands. Reconcentration by Cold Trapping. Reconcentration by Solvent Effects. Band Broadening in Space in Splitless Injection. Examples of the Use of Reconcentration Effects. Problems with Quantitative Analysis. Direct Injection. General Evaluation of Splitless Injection. References B. PROBLEMS ARISING FROM THE HEATED SYRINGE NEEDLE IN VAPORIZING INJECTION. Evaporation Inside the Needle. How Much is Really Injected? Syringe Needle Handling Techniques. Dependence of Discrimination on Sample Volume. Solvent and Solutes. Injector Temperature. Possibilities of Avoiding Evaporation in the Needle. Summarizing Guidelines. References C. PROGRAMMED TEMPERATURE VAPORIZING (PTV) INJECTION. Injector Design. Packed Insert? Prevention of Sample Evaporation in the Syringe Needle. PTV Split Injection. PTV Splitless Injection. PTV Direct Injection. PTV Solvent Split Injection. PTV Vapor Overflow. Reconcentrating Headspace Analysis. Initial Bands in PTV Injection. Concluding Remarks. References D. Appendices. Subject Index.
