Abstract
The saying ‘time is money’ is becoming ever more common in the laboratory environment. There has always been a need to control analytical costs in terms of solvent usage and disposal, consumable expenditure and administration overheads. However, there is currently an even greater emphasis on the time an analysis takes, and this has led to the development of automated commercial extraction methods using solvent, microwave-assisted and supercritical fluid extraction (SFE) systems. To automate the analytical process fully the extraction and analysis procedures need to be combined to produce a coupled on-line technique that minimises the sample handling and preparation steps which contribute to analyte loss, degradation and/or contamination. This direct transfer of extracted analytes into the analyte separation and detection system produces a more sensitive analysis and increases the laboratory sample throughput. For example, the extraction and chromatographic analysis of real-world samples with low (ppm—ppb) analyte concentrations can be achieved within 1 h using an on-line approach [1-3].
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Burford, M.D. (1998). Supercritical fluid extraction coupled on-line with gas chromatography. In: Ramsey, E.D. (eds) Analytical Supercritical Fluid Extraction Techniques. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4948-8_5
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DOI: https://doi.org/10.1007/978-94-011-4948-8_5
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