Diferenças entre edições de "Espectroscopia NMR"

6 bytes adicionados ,  16h42min de 17 de janeiro de 2015
m
WPCleaner v1.34 - Corrigido usando WP:PCW (Comentários sem fechamento - Categoria em inglês (BOT))
m (Bot: Correcção de afluentes)
m (WPCleaner v1.34 - Corrigido usando WP:PCW (Comentários sem fechamento - Categoria em inglês (BOT)))
Modern analysis software allows analysis of the size of peaks to understand how many protons give rise to the peak. This is known as [[integral|integration]]—a mathematical process which calculates the area under a curve. The analyst must integrate the peak and not measure its height because the peaks also have ''width''—and thus its size is dependent on its area not its height. However, it should be mentioned that the number of protons, or any other observed nucleus, is only proportional to the intensity, or the integral, of the NMR signal, in the very simplest one-dimensional NMR experiments. In more elaborate experiments, for instance, experiments typically used to obtain [[carbon-13]] NMR spectra, the integral of the signals depends on the relaxation rate of the nucleus, and its scalar and dipolar coupling constants. Very often these factors are poorly known - therefore, the integral of the NMR signal is very difficult to interpret in more complicated NMR experiments.
 
===J-coupling=== --><!-- This section is linked from [[Hyperfine coupling]]
{{Main|J-coupling}}
{| class=wikitable style="text-align:center" align=right
{{List of NMR solvents}}
-->
[[CategoryCategoria:Espectroscopia]]
[[CategoryCategoria:Ressonância magnética nuclear]]
1 335

edições