Razón española, Edizioni 21-26Fundación Balmes, 1983 |
Dall'interno del libro
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Pagina 416
... Spectra . Well over 200 iso- topes have nuclear magnetic properties and thus are capable of yielding spectra . Table 14-2 lists the properties of a few of the com- mon nuclei that have been employed in NMR studies . Note the wide ...
... Spectra . Well over 200 iso- topes have nuclear magnetic properties and thus are capable of yielding spectra . Table 14-2 lists the properties of a few of the com- mon nuclei that have been employed in NMR studies . Note the wide ...
Pagina 417
... spectra of ethanol at a fre- quency of 60 MHz . ( a ) Resolution ~ 1 / 106 ; ( b ) resolution ~ 1 / 107 . Figure 14–6b , at higher resolution , two of the three peaks can be resolved ... Spectra 417 14B Environmental Effects on NMR Spectra,
... spectra of ethanol at a fre- quency of 60 MHz . ( a ) Resolution ~ 1 / 106 ; ( b ) resolution ~ 1 / 107 . Figure 14–6b , at higher resolution , two of the three peaks can be resolved ... Spectra 417 14B Environmental Effects on NMR Spectra,
Pagina 554
... SPECTRA Generally , after determining the molecular weight of the analyte and studying its iso- topic distribution and fragmentation pat- terns , the experienced mass spectroscopist is able to narrow the possible structures down to a ...
... SPECTRA Generally , after determining the molecular weight of the analyte and studying its iso- topic distribution and fragmentation pat- terns , the experienced mass spectroscopist is able to narrow the possible structures down to a ...
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