Table 1 The statistical parameters observed for each individual OPLS-DA model generated based upon spectrometric data obtained using REIMS-QTof MS in negative ionisation and sensitivity mode. The table identifies the number of latent and orthogonal components used for each model and their subsequent R2, Q2 and RMSECV values. Individual models were generated excluding ions with a VIP < 1.

From: Rapid detection and specific identification of offals within minced beef samples utilising ambient mass spectrometry

Model

Latent component

Orthogonal component

R2 (cum)

Q2 (cum)

RMSECV

Brain v other classes

1

1

0.985

0.985

0.0476

Heart v other classes

1

5

0.969

0.968

0.0689

Kidney v other classes

1

3

0.964

0.963

0.0681

Large intestine v other classes

1

3

0.968

0.968

0.0655

Liver v other classes

1

1

0.975

0.973

0.0581

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