Abstract
An interface for direct coupling of micro high-performance liquid chromatography with fast atom bombardment mass spectrometry has been developed. The interface was made of fused-silica capillary tubing, the end of which was attached to a stainles-steel frit. The mobile phase contained glycerol, which functioned as the matrix, and the solvent was immediately vaporized on the surface of the frit. The argon beam stroke the surface of the frit and its position was adjusted so that the solute could be effectively ionized. The performance of the interface was examined using bile acids as the test solutes.
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