Fig. 9From: Cu and As containing pigments in Zhejiang architecture polychrome paintings: a case study of degradation products of emerald greenXPS results of As in the green pigment. a–c the binding energy of As 3d3/2 in samples KKT, WCG-1 and WCG-2; d, e and f the binding energy of As 2p3/2 in samples KKT, WCG-1 and WCG-2Back to article page