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Table 6 FTIR results for each experiment type. The control sample having no exposure, summer and winter having 12 weeks of exposure, and the desert samples having 8 weeks of exposure

From: Establishing a minimum PMI for bone sun bleaching in a UK environment with a controlled desert-simulated comparison

FTIR Crystallinity index P value Mineral to organic ratio P value Carbonate to phosphate P value
Control 2.46 ± 0.008 - 2.35 ± 0.04 - 0.04 ± 0.0004 -
Summer 2.53 ± 0.004 0.15 2.76 ± 0.05 0.73 0.04 ± 0.0009 0.65
Desert 2.48 ± 0.002 0.00 2.34 ± 0.3 0.28 0.04 ± 0.0008 0.05
Winter 2.47 ± 0.005 0.76 2.79 ± 0.0003 0.00 0.03 ± 0.00009 0.53