Fig. 1. The ²H nuclear magnetic resonance (NMR) spectra of different aromatic compounds and deuterated water at natural abundance in aqueous soil suspensions at pH 7. (a) d₆–benzene (downfield-shifted). (b) d₅–fluorobenzene (two peaks resolved for , the most downfield-shifted, and ß). (c) d₈–toluene (one peak resolved for -C₆D₅ as the most downfield-shifted; -CD₃ as the most upfield-shifted).

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