Pumps reproducibility

Figure 5.2 A simplified microreactor (a) empty tubing (b) filled with AO resin with (c) filter caps and (d) attached to syringe pumps. (Reproduced from ref. 13, with permission.)...

Figure 5.25 — Flow-through ion-selective optrode based on a multilayer lipidic membrane prepared by the Langmuir-Blodgett method. (A) Cross-sectional view of the composite six-layer membrane (four layers of arachidic acid/ valinomycin covered by an arachidic acid and rhodamine dye bilayer). (B) Optical arrangement integrated with the sensor, which is connected to a flow system. LS light source Ml and M2 excitation and emission monochromator, respectively FI and F2 primary filters M mirror LB lipid-sensitive membrane in a glass platelet FC flow-cell A amplifier D display P peristaltic pump. (Reproduced from [107] with permission of the Royal Society of Chemistry).

A test to assess pump-to-pump reproducibility in terms of drug product performance and to evaluate the delivery from the pump should be performed. The proper performance of the pump should be ensured primarily by the pump manufacturer, who should assemble the pump with parts of precise dimensions. Pump spray weight delivery should be verified by the applicant for the drug product. In general, pump spray weight delivery acceptance criteria should con-... 

Figure 6 Proposed structure for the polypeptide of the sodium pump (reproduced with permission from Biochemistry, 1984, 23, 888, American Chemical Society, Washington, DC)...

FIGURE 1.4 Pump selection chart for AJAX E range pumps. (Reproduced with permission.)... 

Figure 3.9 General variation with pressure of the pumping speed of a high vacuum pump (Reproduced from W. Schwarz, in ref. (f), p. 525 reprinted by permission of John Wiley Sons Inc.)...

FIGURE 7-3. Methods of gradient formation, (a) Single pump with multiple solvents using solenoid valves. (b) Multiple pump. (Reproduced from reference 1 with permission.)... 

Figure 4.26. (a) Single-head reciprocating pump (Reproduced by permission of Gilson Medical Electronics, Inc.), (b) Double-heud in-series reciprocating pump... 

FIGURE 31.2 Pictorial depiction of a double module hollow fiber Uquid membrane set up. HFM—Hollow fiber module F— Feed O— Organic extractant S—Strip or receiver phase and P—Pump. (Reproduced from Mohapatra, P.K. and Manchanda, V.K., Indian J. Chem., 42A, 2925, 2003. With permission.)... 

Fig. 5.5. (A) Scheme of a flow digestion system and the principle of pressure equilibration A pressure reactor, B heating zone, C cooling zone, D digestion coil, E cooling device, F connection for gas supply, G restrictor tube, H collector vial, I temperature sensor, J high-pressure pump, K injection valve, L sample loop, M sample, N and O peristaltic pumps. (Reproduced with permission of the American Chemical Society.) (B) Manifold for dynamic microwave-assisted extraction I solvent, 2 pump, 3 microwave oven, 4 extraction chamber, 5 temperature set-point controller, 6 thermocouple, 7 fluorescence detector, 8 recording device, 9 restrictor, 10 extractor. (Reproduced with permission of Elsevier.)...

Fig. 5.6. (A) Flow-injection manifold for the wet digestion of shellfish slurry samples C carrier solution, P peristaltic pump, 1C injector commutator, W waste, r restrictor. (B) Dynamic manifold for the analysis of sludge slurries in an on-line digestion-reduction system by Fl-HG-AFS IV injection valve, AFS atomic fluorescence spectrometer, P peristaltic pump. (Reproduced with permission of the Royal Society of Chemistry.)...

Figure 39 The catalytic reaction of cytochrome c oxidase (time constants are those observed with Rhodobacter sphaeroides). The outer circle represents the reaction sequence during turnover when eiectrons are added one by one from cytochrome c. The reaction sequence via the Pr state is that observed during reaction of thefuiiy reduced COX with O2. Reaction steps indicated by blue arrows are linked to proton pumping. Reproduced from G. Branden R. B. Gennis ...

Figure 19. Rotor and stator assembly of progressive cavity pump. (Reproduced with permission from reference 113. Copyright 1988 Canadian Institute of Mining, Metallurgy, and Petroleum.)...

Fig. 4.14 Flow-injection assemblies for ion-exchange preconcentration of metal traces prior to introduction into an atomic absorption spectrometer. (A) Single-line manifold (B) three-valve system for upstream elution (C) automated assembly with intermittent pumping. (Reproduced from [11] with permission of the Royal Society of Chemistry).

Figure 5.24 Demonstration of the independence of ESI-MS signal intensity on solution flow rate (see Section 5.3.6b). The anal3de was the cyclic peptide gramicidin S dissolved in methanol water (1 1) this solution was infused into the ESI source using a syringe pump. Reproduced from Whitehouse, Anal. Chem. 57, 675 (1985), copyright (1985), with permission of the American Chemical...

Figure 10.13 Changes in PL spectra taken from AC7 crystals as a function of pumping Reproduced from H.

Fig. 3 (a) Schematic drawing of diaphragm pump and (b) photograph of the prototype diaphragm pump (Reproduced from (Eamex HP, http //eamex.co.jp/))... 

Fig. 2. A typical twin-headed reciprocating pump. Reproduced from W.J. Lough I.W. Wainer, High Performance Liquid Chromatography, 1996, first published by Blackie Academic Professional.

Figure 3.1.5 Schematics illustrating working principles of rotary vane and scroll-roughening pumps. (Reproduced from Ref. [5].)...

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