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. 2018 Jan 22;3(1):724–733. doi: 10.1021/acsomega.7b00982

Figure 2.

Figure 2

Characteristic LC–OCD–OND spectrum of EPS extracted from field biofilm samples. Peaks represent different fractions of EPS: biopolymers, building blocks of humic acids, low-molecular-weight acids, and neutral compounds.12