Therefore, though some of the organic carbon was adsorbed on the surface of the particle, the amounts of the microorganisms are enough for the degradation of NP.
The more critical issue lies in the analytical methodology used for isomers quantification. First of all, figure one is a chromatogram, not a spectrum. The chromatogram is not well resolved, i.e., there is no separation among the different analytes determined. For example, look at peaks 4, 5, and 6. There is no resolution among the isomers, the same for NP 7 and 8 and NP 8 and 10; thus, it is impossible to quantify them. If correct quantification is not assessed, then figure 1 and table 1 and 2 are not valid.