碘量法测定坚果油的碘值——推荐一个分析化学综合实验
邓燕
Iodometry-Based Standardization of Iodine Value of Nut Oil: An Introduction of a Comprehensive Analytical Chemistry Experiment
Yan Deng
表1
Na
2
S
2
O
3
溶液标定实验数据
m
(K
2
Cr
2
O
7
)/g
V
(Na
2
S
2
O
3
)/mL
c
(Na
2
S
2
O
3
)/(mol·L
-1
)
${\bar c}$(Na
2
S
2
O
3
)/(mol·L
-1
)
RSD/%
0.1304
27.71
0.0960
0.0954
0.57
0.1129
24.25
0.0949
0.1258
26.96
0.0952