Erratum to: Mass spectrometric screening and identification of acidic metabolites in fulvic acid fractions of contaminated groundwater

Erratum to: Anal Bioanal Chem

DOI 10.1007/s00216-014-7783-y

The authors would like to call the reader’s attention to the following:

The second paragraph in the section “Elucidation of unknown structures” should read:

“A query for the chemical formula of peak 3 (C₈H₈O₃) in PubChem resulted in 633 hits. The fragmentation pattern of peak 3 reveals the loss of CO₂ typical for aromatic or heterocyclic acids (Fig. 5a)”.

In Table 3 two words were misspelled. They should correctly read: “Dihydrocarboxybenzothiophene” and “Benzofuranmethylsuccinic acid”.

Table 4 was unfortunately reproduced incorrectly. Below please find the corrected version:

Table 4 Identified (bold) and tentatively identified metabolites in the FA-fraction of the contaminated region (B22 FA). Additionally structural proposals (grey) for metabolites are listed

In the “Electronic Supplementary Material” the legend to Figure S2 should correctly read:

“Figure S2. (Part 3): LC-ESI-QTOF-MS fragmentation spectra (exemplarily at a collision energy of CE = 10 eV) of the most intensive peaks derived from the NLS Δm/z = 44. For peak 15 no fragmentation spectra could be obtained”.

In the “Electronic Supplementary Material” Table S1 was unfortunately reproduced incorrectly. Below please find the corrected version:

Table S1: Results of a literature search for acidic metabolites of monoaromatic, polycyclic aromatic, bicyclic and heterocyclic compounds found in batch experiments (b) and/or in the field (f).