Displacement chromatography schematic

FIG. 16"37 Schematic showing the intersection of the operating line with the pure-component isotherms in displacement chromatography. Conditions are the same as in Fig. 16-36. 

Figure 9.2 Schematic of experimental setups for displacement chromatography, (a) Schematic employing a single 10-port valve, (b) Schematic employing a 6-port and a switching valve.

Figure 4.2. Schematic presentation of a separation by displacement chromatography.

Figure 20 Schematic of the flow-through competitive MIA [29,56-58,60], (a) There is a constant concentration of chromophore/fluorophore in the mobile phase, and a constant amount in the binding sites of the MIP. (b) When analyte is injected, it displaces the (intensely colored/fluorescent) probe from the MIP binding sites so the concentration in the mobile phase transiently increases, (c) The presence of the analyte is detected as a peak, followed by a trough as the analyte itself is eluted from the MIP and probe is readsorbed from the mobile phase. Interferents that do not bind to the MIP do not displace probe, so no signal is detected. Sensitivity is enhanced over conventional chromatography because the probe is much more readily detected via absorbance or fluorescence than is the analyte itself.

Figure 8.2 shows, schematically, the simplest possible VLE experiment. A liquid sample of the mixture of interest is placed in an Erlenmeyer flask and heated to a boil. The boiling continues until the vapor has displaced all the air from the flask. This means that the liquid composition will no longer be equal to that originally prepared, because the vapor leaving the system does not have the same composition as the liquid. When we are sure that all the air is gone, we measure the temperature and take samples of liquid and vapor, which we analyze (by any of several laboratory techniques, e.g., chromatography). 

---