Transcription of NMR yields usually
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NMR yields usually
BO Group . Stockholms Universitet Tue B. Petersen . nmr yields General The ratio of compounds in a sample can be determined using the integrals of the peaks. Reliable integrals require: homogenous sample a homogeneous NMR sample sufficient relaxation time (d1) usually not a problem in 1H NMR, but in 19F NMR we customarily extend d1 to 5 s absence of decoupling pulses (this is why the integrals in a standard 13C NMR spectrum are not useful) good signal to noise ratio proper phasing of the spectrum absence of (significant) other contributions to the peaks chosen ( the compounds being compared must have peaks that do not overlap with peaks from other compounds)
BO Group . Stockholms Universitet Tue B. Petersen . tue@organ.su.se NMR yields General The ratio of compounds in a sample can be determined using the integrals of the peaks.
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