Skip to main content
. Author manuscript; available in PMC: 2014 Aug 19.
Published in final edited form as: Colloids Surf B Biointerfaces. 1994 Sep 30;3(1-2):49–62. doi: 10.1016/0927-7765(93)01114-7

Table 4.

Atomic composition of APDMS, PEG2000– and PEG5000–silica surfaces determined by XPS analysis

Sample Composition (at.%)
C N Si O –CO–/–CH2–
APDMS 12.8 ± 0.4 1.7 ± 0.3 37.2 ± 0.2 48.2 ± 0.5 -
PEG2000 31.5 ± 0.2 0.8 ± 0.1 22.9 ± 0.1 44.8 ± 0.1 8.6 ± 0.2
PEG5000 40.6 ± 0.2 0.6 ± 0.2 16.9 ± 0.4 42.0 ± 0.1 10.4 ± 1.1

An average for two samples is given.