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. 2014 Feb 27;9(2):e86024. doi: 10.1371/journal.pone.0086024

Table 2. Surface functional group composition as obtained from the deconvolution of the C 1.

Samples C1 C2 C3 C4
C-C/C-H C-O O-C-O/C = O O-C = O
BE (eV)a 284.8 286.3±0.1 287.6±0.1 288.9±0.05
WMS 50.42 33.29 14.97 1.32
SNCH2SO4,3 49.23 34.94 11.56 4.27
SNCH2SO4,7 14.57 62.54 19.71 3.18
SNCHCl,7 23.60 59.10 15.49 1.83
a

The binding energy for each signal is given with variation seen between different sample.