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Results of an analysis performed after 14 h of incubation of M. aurum MO1 cells (100 g liter−1) in distilled water in the presence of thiomorpholine (10 mM). (A) 1H-NMR spectrum. (B) Mass spectrometry spectra obtained under positive (upper spectrum) and negative (lower spectrum) ionization with an infusion pump. In the positive mode, the OR voltage applied was 20 V and the RNG voltage was 220 V. In the negative mode, the OR voltage was −60 V and the RNG voltage was −330 V.
