Razón española, Edizioni 21-26Fundación Balmes, 1983 |
Dall'interno del libro
Risultati 1-3 di 55
Pagina 419
... protons in a methyl group is larger than the correspond- ing parameter for methylene protons ; it is even smaller for the proton in an —OH group . For an isolated hydrogen nucleus , the shielding parameter is zero . Thus , in or- der to ...
... protons in a methyl group is larger than the correspond- ing parameter for methylene protons ; it is even smaller for the proton in an —OH group . For an isolated hydrogen nucleus , the shielding parameter is zero . Thus , in or- der to ...
Pagina 427
... protons on the two ends of the molecule would be determined by the number of protons on the central carbon ; thus , the multiplicity is ( 2 + 1 ) = 3 and the areas would be 1 : 2 : 1 . The multiplicity of two central meth- ylene protons ...
... protons on the two ends of the molecule would be determined by the number of protons on the central carbon ; thus , the multiplicity is ( 2 + 1 ) = 3 and the areas would be 1 : 2 : 1 . The multiplicity of two central meth- ylene protons ...
Pagina 429
... protons in a molecule simplifies the spectrum by removal of the absorption peaks corresponding to the sub- stituted protons . Further simplification may also be observed because the coupling be- tween a deuterium and a proton is signifi ...
... protons in a molecule simplifies the spectrum by removal of the absorption peaks corresponding to the sub- stituted protons . Further simplification may also be observed because the coupling be- tween a deuterium and a proton is signifi ...
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