Abstract
A Laser Enhanced Ionization (LEI) detector has been connected on-line with a high pressure liquid chromatography (HPLC) system equipped with a UV absorbance detector. The feasibility of this combined detector system has been demonstrated for metal analysis in the HPLC separated compounds. In the situation where the compounds are not separated in the HPLC column the LEI detector can be used for selective detection of the compounds containing the metal. The detection limits of the system for metal determination were in these experiments approximately 1 ng for Fe, but can easily be improved orders of magnitude.
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