The Scientific World Journal / 2013 / Article / Tab 3

Research Article

Authentication of Nigella sativa Seed Oil in Binary and Ternary Mixtures with Corn Oil and Soybean Oil Using FTIR Spectroscopy Coupled with Partial Least Square

Table 3

PLS performances at some frequency regions for the determination of NSO in binary mixtures with CO.

Frequencies region (cm−1) Spectra CalibrationValidation
RMSEC (% v/v) RMSEP (% v/v)

4000–650Normal0.98183.500.95423.06
Derivative 10.99042.120.99751.32
Derivative 20.99681.610.99751.15

2977–3028,
1666–1739,
740–1446
Normal0.99292.230.98492.80
Derivative 10.99331.850.99701.41
Derivative 2*0.9984 1.34 0.9987 0.66

1666–1739Normal0.99262.480.99291.83
Derivative 10.99661.550.99501.88
Derivative 20.99152.080.99781.21

740–1446Normal0.99831.110.99651.34
Derivative 10.99831.190.99830.87
Derivative 20.99212.200.99521.82

*The frequency region and FTIR spectral treatment selected for quantification were marked with italics.

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