Gas-nebulized direct liquid introduction interface for liquid chromatography/mass spectrometry

On-line thermionic detection for narrow-bore reversed-phase liquid chromatography

“…This corresponds to a volumetric variance, 2, of 0.6 mL2 at an eluent flow rate of 20 ML/min. It is a fully acceptable result, which is comparable to that observed for several other detectors used in narrowbore LC (11,17).…”

“…Compared to other equipment for LC-TID reported in the literature (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20), the present device appears to be rather simple and more flexible in terms of range of application. Also, no special maintenance problems have been encountered thus far, although the LC-TID has been in uninterrupted use for over 8 months now.…”

“…In our laboratory, we have ample experience with combining normal-phase and reversed-phase LC systems with an electron capture detector (2,3) and a mass spectrometer (11). For the first combination a rather simple evaporation interface is employed to obtain an on-line coupled system.…”

“…This has promoted development of automated derivatization coupled to the injection, for reproducible results (8,9). The reagent has been applied to a variety of samples including physiological fluids (10,11).…”

Enhanced fluorescence detection of dansyl derivatives of phenolic compounds using a postcolumn photochemical reactor and application to chlorophenols in river water

“…Samples were introduced by loop injection, in acetonitrile-water 70:30 (v/v) at a flow rate of 20 aL/min, using a Gilson (Villiers-le-Bel, France) Model 302 pump. The home-made interface that was used has been described in detail in an earlier paper (12).…”