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Table 1 SEM-EDS analysis of different layers in five samples (wt%)

From: Micro-stratigraphical investigation on corrosion layers in ancient Bronze artefacts by scanning electron microscopy energy dispersive spectrometry and optical microscopy

   Cu Sn Pb O Cl S Si Al Mg
HT.33.04 A 8.72 76.03 7.15 0.45 2.32 1.33 4.02 - -
B 81.39 12.03 1.63 1.56 3.39 - - - -
C 62.47 0.19 - 12.8 24.55 - - - -
D 46.43 19.03 - 2.11 18.28 8.85 5.30 - -
HT.41.04 A 9.81 54.5 6.53 6.35 6.82 0.66 4.62 10.72 -
B 71.34 13.4 9.38 0.68 5.2 - - - -
C 77.91 20.05 - 1.57 0.47 - - - -
D 83.84 7.08 - 0.65 3.03 - 5.40 - -
HT.48.04 A 5.36 66.14 6.71 8.19 9.29 - 4.32 - -
B 54.57 26.42 0.28 3.43 14.56 0.74 - - -
C 63.38 20.99 10.75 0.55 4.33 - - - -
D 40.73 6.57 - 30.08 22.62 - - - -
HT.49.04 A 18.92 51.47 - 3.44 4.77 4.50 7.92 - 8.99
B 56.75 23.61 6.25 1.22 6.62 0.91 4.64 - -
C 45.48 2.67 - 33.35 18.5 - - - -
D 43.42 38.45 4.91 1.88 6.47 0.48 4.39 - -
HT.50.04 A 64.68 11.16 - 2.63 21.53 - - - -
B 73.33 1.21 - 1.55 23.9 - - - -
C 29.23 40.91 - 3.33 20.82 - 5.71 - -
D 29.03 4.05 - 34.76 32.16 - - - -
E 75.64 16.08 - 0.14 4.82 - 3.31 - -