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Gradient elution accessory

The Tracor Chromatec Model 8000 gradient elution accessory uses two solenoid-... [Pg.45]

Gradients generated with pneumatic pumps. The DuPont gradient elution accessory and the Jobling Model JL 921 gradient generator are similar and use... [Pg.52]

Fig. 7. DuPont gradient elution accessory, a, b = proportioning valves, c = holding coil, d, e, T, g, k = valves, h = solvent reservoirs, 1 = source of gas under constant pressure 25 psi), j - vacuum, 1 = pump, m = drain, n = mixing chamber, p = chrofnatograph (injection port, column, detector(s)), q = measuring container. Fig. 7. DuPont gradient elution accessory, a, b = proportioning valves, c = holding coil, d, e, T, g, k = valves, h = solvent reservoirs, 1 = source of gas under constant pressure 25 psi), j - vacuum, 1 = pump, m = drain, n = mixing chamber, p = chrofnatograph (injection port, column, detector(s)), q = measuring container.
DuPont system when the Model 833 precision flow controller is coupled with the gradient elution accessory immediately after the pneumatic pump on solvent A line (Fig. 7). The air pressure is adjusted so that the flow-rate is kept constant. Also in the DuPont device, solvents that differ widely in viscosity can be difficult to mix and the shape of the gradient can be altered. [Pg.54]

On the DuPont Model 830 gradient elution accessory, Micromeritics Model 7OD0 gradient system, Perkin-Elmer Model 601 gradient system, Spectra-Physics Chromatronix Model 744 solvent programmer, Waters Model 660 sol vent prograimer,... [Pg.59]

In the DuPont 838 programmable gradient elution accessory, the gradient curve is drawn on a metallized paper sheet which is set on a rotating cylinder that rotates at a frequency of 1 cycle every 7.5 sec. A sensing cell moves along the... [Pg.60]

Fig.6. Schematic of the solvent gradient elution CEC apparatus with ramping voltage accessory. (Reprinted with permission from [204] Copyright 1996 American Chemical Society)... Fig.6. Schematic of the solvent gradient elution CEC apparatus with ramping voltage accessory. (Reprinted with permission from [204] Copyright 1996 American Chemical Society)...

See other pages where Gradient elution accessory is mentioned: [Pg.318]    [Pg.22]    [Pg.375]    [Pg.71]   
See also in sourсe #XX -- [ Pg.53 ]




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Accessories

DuPont gradient elution accessory

Gradient elution

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