Indirect Introduction of Water

A similar on-line LLF system, equipped with an on-line derivatization system, has also been reported. Brinkman and co-workers, for example, have presented a complete automated on-line system that allows both the LLF and alkylation of organic acids (38). More recently, this same group have reported the coupling of 

Coupled liquid chromatography-gas chromatography is an excellent on-line method for sample enrichment and sample clean-up. Recently, many authors have reviewed in some detail the various LC-GC transfer methods that are now available (1, 43-52). For the analysis of normal phase eluents, the main transfer technique used is, without doubt, concurrent eluent evaporation employing a loop-type interface. The main disadvantage of this technique is co-evaporation of the solute with the solvent. 

On-Line Coupled LC-GC, W. Beitsch, W. G. Jennings and P. Sandra (Series Eds), Hiithig, Heidelberg, Germany (1991). 

Biedermann, K. Grob and W. Meier, Partially concunent eluent evaporation with an early vapor exit detection of food uxadiation tltiough coupled LC-GC analysis of the fat , 7. High Resolut. Chromatogr. 12 591-598 (1989). 

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