Determination of Heating Value of Estonian Oil Shale by Laser-Induced Breakdown Spectroscopy

Table 2

RSD and R² for ingredients of oil shale.

	RSD	R^2
C	0.015	0.982
N	0.016	0.984
H	0.027	0.973
CaO	0.03	0.933
SiO2	0.031	0.964
Fe2O3	0.049	0.729
MgO	0.136	0.281
Al2O3	0.137	0.629
Na2O	0.251	0.691
K2O	0.296	0.533
S	0.041	0.869