Enzymatic Transformation and Bonding of Sulfonamide Antibiotics to Model Humic Substances

Figure 1

Changes of the sulfonamide concentration in dependence on the catechol concentration. The triangles indicate the data measured at different reaction time for sulfapyridine and solid symbols indicate the different sulfonamides measured after five days (SPY = triangles, SAA = squares, and SDT = circles). Error bars not shown are smaller than symbols.