Abstract
4-Nitrocatechol was identified as a product of transformation of 4-nitrophenol by bacterial strain Corynebacterium sp.8/3 using direct acetylation of biodegradation samples by acetic anhydride followed by GC–MS analysis. The identity of 4-nitrocatechol, in the form of diacetate, was confirmed by electron-impact spectra and spectra recorded under chemical ionization conditions (positive and negative modes). Negative-ion chemical ionization was used for quantification of 4-nitrocatechol in biodegradation samples in a concentration range of 1–25 mg/l.
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