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The second type of carbon that spectrum is a spectrum of dekopling-13 c proton, is a spectrum where 13 c coupled with not 1 h, so it does not show the separation of spin-spin.Dekopling can be reached electronically by using a radio frequency to the second sample. These led to additional energy fast interkonversi between parallel and spin state of antiparalel of the proton-proton. As a result of a 13 c nuclei only saw an average of two State of the spin of the proton and isyaratnya will not unravel. Because there is no decomposition in a dekopling-proton spectrum, then cues for each group the equivalent carbon atoms in magnetic will appear as an undershirt (Almolthma. 2008).
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