Chemical Analysis of Hematite Ore Collected from Pokhari, Nawalparasi, Nepal

Table 7

A comparison of iron content present in hematite ore by AAS, titration, and UV-spectrophotometric method.

Channels	Percentage of Fe determination
	By AAS	By UV	By titration
A	38.96	37.80	34.26
B	39.05	38.63	35.14
C	37.89	33.86	39.18
D	39.87	35.28	42.53
E	39.91	36.11	36.01
F	32.82	31.05	36.02
G	38.04	37.13	36.82
H	38.17	37.67	34.06
Average	38.09	35.94	36.75
SD	2.26	2.50	2.83
Average ± SD	38.09 ± 2.26	35.94 ± 2.50	36.75 ± 2.83
Relative SD in percentage	5.93	6.95	7.70