Mn

Cu

Sample no

Recommended value (%)

Quaternion regression analysis value (%)

Absolute error (%)

Relative error (%)

Recommended value (%)

Quaternion regression analysis value (%)

Absolute error (%)

Relative error (%)

GF1

0.518

0.520

0.002

0.39

0.055

0.054

−0.001

−1.82

GF2

0.424

0.422

−0.002

−0.47

0.078

0.078

0.000

0.00

GF5

0.398

0.396

−0.002

−0.50

0.105

0.105

0.000

0.00

GF7

1.312

1.311

−0.001

−0.08

0.835

0.838

0.003

0.36

GF9

0.642

0.644

0.002

0.31

0.076

0.077

0.001

1.32

GF12

0.556

0.556

0.000

0.00

2.883

2.882

−0.001

−0.03

Average value

0.642

0.642

0.002

0.29

0.672

0.672

0.001

0.59