Assessment of the Quality of Newly Formed Bone around Titanium Alloy Implants by Using X-Ray Photoelectron Spectroscopy

Table 3

Main chemical bonding of each element and peak position (eV).

Peak	Binding energy (eV)	Peak position
	Metal—O	530-531
O1s	Metal—POx, −OH	531-532
	C=O, C–O–C	532-533
	C–C, C–H	284.8
C1s	C–O, C–N	286
	C=O	287-288
	O=C–O	289
	Ca	346
Ca2p 3/2	CaO	346-347
	Ca10 (PO4)6 (OH)2	346-347
	Metal—P	129
P2p	Metal—POx	133.5
	P2O5	135
	Ca10 (PO4)6 (OH)2	133–133.5
	C–N, C=N, N–H	398.5–401
Nls	Metal–N	396–398
	NO	401–403
	Si	99.4
Si2p	SiOx, SiOC	101–103
	SiO2	103–103.6