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. 2018 Jun 20;11(6):1047. doi: 10.3390/ma11061047

Table 5.

Boehm titration for different modification gas flows (Unit: mmol/g).

Sample Acid Functional Groups Basic Functional Groups Phenolic Hydroxyl Groups Carboxyl
20 mL/min 4.3000 0.0000 0.0055 0.0072
40 mL/min 0.4500 2.8000 0.0035 0.0033
60 mL/min 4.4500 0.0000 0.0100 0.0087