Razón española, Edizioni 21-26Fundación Balmes, 1983 |
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Pagina 728
... stationary and mobile phases are brought into contact . In column chromatography , the stationary phase is held in a narrow tube through which the mobile phase is forced under pressure or by gravity . In planar chromatog- raphy , the ...
... stationary and mobile phases are brought into contact . In column chromatography , the stationary phase is held in a narrow tube through which the mobile phase is forced under pressure or by gravity . In planar chromatog- raphy , the ...
Pagina 738
... mobile phase , which are retained in the stationary phase . Thus , when a solid serves as the stationary phase , its pores are filled with static volumes of mobile phase . Solute molecules must then diffuse through these stagnant pools ...
... mobile phase , which are retained in the stationary phase . Thus , when a solid serves as the stationary phase , its pores are filled with static volumes of mobile phase . Solute molecules must then diffuse through these stagnant pools ...
Pagina 739
... stationary phase ; Cмu comes from a limitation in the rate of mass transfer in the mobile phase ; and Blu is associated with longitudinal diffusion . Β / μ Mobile phase linear velocity , μ , cm / sec peratures generally give improved ...
... stationary phase ; Cмu comes from a limitation in the rate of mass transfer in the mobile phase ; and Blu is associated with longitudinal diffusion . Β / μ Mobile phase linear velocity , μ , cm / sec peratures generally give improved ...
Sommario
Contents | 1 |
Elementary Electronics | 30 |
Microcomputers and Microprocessors in Chemical Instrumentation | 80 |
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absorbance absorption acid amplifier Anal analysis analyte analytical signal anode applications atoms beam Beer's law Calculate cathode cell Chem chemical chromatography circuit column components compounds concentration constant containing coulometric curve detector determination device dispersion effect elec electrical electrode elements emission employed energy Equation example excited filter flame fluorescence frequency function hydrogen infrared input instruments ionization iron(II liquid magnetic mass mass spectrometer measurements membrane ment methods mobile phase molar absorptivities molecular molecules monochromator obtained operational amplifier optical output oxidation particles peak photomultiplier plate polarized polarography potential prism protons pulse quantitative radiation Raman range reaction reagent refractive refractive index region relative rotation sample sensitivity shown in Figure signal slit solution solvent species spectra spectrometer spectrophotometer spectroscopy spectrum standard deviation stationary phase surface temperature tion titration trode tube typical ultraviolet V₁ vibrational voltage wave wavelength X-ray