Crude Oil

Vanadium

Nickel

Slope

Correlation Coefficient, R²

Slope

Correlation Coefficient, R²

Calibration Curve

0.006

0.9989

0.0636

0.9952

Crude Oil 1

0.007

0.9977

0.0517

0.9965

Crude Oil 3

0.0067

0.9986

0.0517

0.9972

Crude Oil 5

0.0043

0.987

0.0438

0.9994