Razón española, Edizioni 21-26Fundación Balmes, 1983 |
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Pagina 138
... anode sealed inside an evacuated transparent envelope ( see Figure 5-22 ) . The concave surface of the electrode sup- ports a layer of photoemissive material ( Sec- tion 4B - 1 ) that tends to emit electrons upon being irradiated . When ...
... anode sealed inside an evacuated transparent envelope ( see Figure 5-22 ) . The concave surface of the electrode sup- ports a layer of photoemissive material ( Sec- tion 4B - 1 ) that tends to emit electrons upon being irradiated . When ...
Pagina 478
Excitation conditions Tube anode : Rh Filter : None Anode voltage : 10 kV Anode current : 50 amps Livetime : 200 seconds FIGURE 15-17 Spectrum of an iron sample obtained with an energy dispersive instrument with a Rh anode X - ray tube ...
Excitation conditions Tube anode : Rh Filter : None Anode voltage : 10 kV Anode current : 50 amps Livetime : 200 seconds FIGURE 15-17 Spectrum of an iron sample obtained with an energy dispersive instrument with a Rh anode X - ray tube ...
Pagina 645
... anode , respec- tively ; their values can , of course , be calculated from standard potentials by means of the Nernst equation . The terms 7cc and ŋck are overvoltages due to concentra- tion polarization and kinetic polarization at the ...
... anode , respec- tively ; their values can , of course , be calculated from standard potentials by means of the Nernst equation . The terms 7cc and ŋck are overvoltages due to concentra- tion polarization and kinetic polarization at the ...
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