Crude Oil Source Identification of Asphalt via ATR-FTIR Approach Combined with Multivariate Statistical Analysis

Table 5

Pearson correlation coefficients of transmittances of the 12 CAPs.

Correlation coefficient (cm^–1)	2920 cm^−1	2850 cm^−1	1700 cm^−1	1600 cm^−1	1460 cm^−1	1380 cm^−1	1166 cm^−1	1032 cm^−1	969 cm^−1	872 cm^−1	812 cm^−1	723 cm^−1
2920	1.00
2850	0.94	1.00
1700	0.15	0.35	1.00
1600	0.22	0.41	0.91	1.00
1460	0.49	0.61	0.71	0.84	1.00
1380	0.30	0.40	0.72	0.85	0.96	1.00
1166	0.13	0.32	0.89	0.96	0.84	0.88	1.00
1032	0.07	0.28	0.85	0.88	0.75	0.79	0.97	1.00
969	0.12	0.30	0.86	0.92	0.83	0.88	0.99	0.98	1.00
872	0.25	0.46	0.89	0.97	0.86	0.87	0.98	0.94	0.96	1.00
812	0.23	0.43	0.84	0.93	0.86	0.87	0.98	0.96	0.98	0.99	1.00
723	0.42	0.63	0.79	0.86	0.83	0.77	0.90	0.91	0.90	0.94	0.95	1.00