Table 2

	F76		Algal HRD		50:50F76:Algal HRD		Biodiesel		5:95Biodiesel:F76





	Mg²⁺	K%⁺	Mg²⁺	K⁺	Mg²⁺	K⁺	Mg²⁺	K⁺	Mg²⁺	K⁺
slope	0.0031	0.0026	0.0028	0.0022	0.0026	0.0028	0.0026	0.0035	0.0024	0.0016
intercept	0.0097	0.0044	0.0166	0.0036	0.0267	0.0001	0.0491	0.0013	0.0083	0.0018
R²	0.9903	0.9908	0.9903	0.9667	0.9855	0.9715	0.9501	0.9856	0.9919	0.9969

Table 2: Coefficients and residual values from linear regression of calibration data for ppb level analysis of magnesium and potassium in fuels.