Sample
C
N
O
Al
Si
Ca
GX
61.90
20.55
15.32
0.95
1.10
0.18
GGL1
93.61
2.70
2.01
0.87
0.81
-
GGL2
95.66
1.24
1.73
0.70
0.67
-
GGL3
95.24
2.57
1.47
0.27
0.45
-
GGL4
94.61
2.8
1.92
0.36
0.31
-
G2
100
-
-
-
-
-
Table 1:
Structural parameters of coal samples treated gluconic acid.