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Table 1 “Statua dello Studente”: Curve-fitted data of the analyzed regions

From: XPS characterization of (copper-based) coloured stains formed on limestone surfaces of outdoor Roman monuments

 

Zone

Ccarb

C-C

Cox

CO32-

O1s

Ca2p3/2 #AES

Cu2p3/2

Pb4f7/2

S2p

Si2p

Zn2p

BE s

GREEN

282.6

285.0

286.9

289.7

529.4

531.8

347.4a

932.9c

934.9

139.0

168.8

102.3

1022.2

At%

 

1.8

8.3

2.4

9.7

54.3

7.1

9.9

0.2

1.4

1.7

3.2

BE s

GREY

282.9

285.0

287.0

289.4

529.6

531.7

347.3b

932.8c

934.8

138.8

168.8

102.5

1022.0

At%

 

1.6

20.1

3.0

6.8

47.2

3.6

12.1

0.3

0.65

3.6

1.03

  1. a: # KE (CuLMM) = 915.8 eV α' = 1850.7 eV
  2. b: #KE (CuLMM) = 916.1 eV α' = 1850.9 eV
  3. c: Cu(I): see text