Table 5. P-XRF analysis results of metal fittings and lock (wt%)

Sample ID Element (wt%)
Cu Zn Fe Cr S Cu + Zn
Front butterfly ornament (L) 57.33 32.74 0.72 2.06 2.88 90.07
Front butterfly ornament (R) 58.88 34.14 0.58 0.08 2.56 93.03
Interior hinge 59.87 34.29 0.40 0.12 2.45 94.16
Drawer handle 66.71 20.61 0.62 - 0.77 87.32
Drawer handle fixing nail 60.34 34.30 0.46 0.05 1.75 94.65
Interior hinge fixing nail 55.05 31.91 9.84 0.07 1.51 86.95
Lock – Taeguk (white) 0.43 0.02 80.51 16.55 0.08 0.45
Lock – Taeguk (red) 89.77 5.61 0.26 - 2.19 95.38
Lock – Body (yellow) 62.93 33.22 0.48 - 0.53 96.15
Lock – Key 1 62.41 32.96 0.58 - 1.74 95.37
Lock – Key 2 60.31 32.74 0.37 0.05 3.01 93.05
-: below the limit of detection (LOD).
P-XRF: portable X-ray fluorescence.