On-line automated sample preparation for liquid chromatography using parallel supported liquid membrane extraction and microporous membrane liquid-liquid extraction.

@article{Sandahl2002OnlineAS,
  title={On-line automated sample preparation for liquid chromatography using parallel supported liquid membrane extraction and microporous membrane liquid-liquid extraction.},
  author={M. Sandahl and L. Mathiasson and J. J{\"o}nsson},
  journal={Journal of chromatography. A},
  year={2002},
  volume={975 1},
  pages={
          211-7
        }
}
An automated system was developed for analysis of non-polar and polar ionisable compounds at trace levels in natural water. Sample work-up was performed in a flow system using two parallel membrane extraction units. This system was connected on-line to a reversed-phase HPLC system for final determination. One of the membrane units was used for supported liquid membrane (SLM) extraction, which is suitable for ionisable or permanently charged compounds. The other unit was used for microporous… Expand
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