13C-NMR 1H-decoupled spectra of styrene polymers were assigned by comparison with modelcompounds, then used in measurements of number average molecular weights. The higher limit of an exactdetermination of the end group signal is less than a molecular weight of 104. For polymer samples withMn103, the results obtained from 13C-NMR spectra of saturated carbon region are in excellent agreementwith the values determined by 1H-NMR, SEC, and VPO methods, while the results from 13C-NMR spectra ofphenyl C-1 carbon region are somewhat higher than the values determined by other methods.
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机译：metodi microbiologici Tradizionali e metodi moleculeolari per l'analisi degli integratori alimentari a base di o con probiotici per ujso umano（microbiological and molecular methods for analysis of probiotic Based Food supplements for Human Consumption）。
