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was developed, leaving a trail of solid deposits in the form of a spiral on the surface of the reflective
plate. Evaporation was aided by the use of a simple nebulizer. The column eluent was fed into a T
junction and one of the other limbs carried a flow of nitrogen gas. The mixture of gas and eluent passed
out through though the third limb, via a narrow nozzle, which directed the spray onto the surface of the
disk. When the separation was complete, the disk was placed into a modified total reflectance
accessory.
Figure 8.3
The Layout of the Transport LC/FTIR
Apparatus Developed by Gagel and Bieman.
Reprinted with permission from J. J. Gagel and K.
Bieman, Anal. Chem., 58(11)(1986)2184,
Copyright 1986 American Chemical Society
The surface was continuously monitored by the IR spectrometer, while the disk rotated, and the
reflectance-absorbance spectra were continuously collected. The LC/FTIR interface appeared to be a
very practical system, and seemed to function without contributing any significant peak
