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International Journal of Analytical Chemistry
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International Journal of Analytical Chemistry
/
2022
/
Article
/
Tab 2
/
Research Article
Schiff Base Ligand 3-(-(2-Hydroxyphenylimino) Methyl)-4H-Chromen-4-One as Colorimetric Sensor for Detection of Cu
2+
, Fe
3+
, and V
5+
in Aqueous Solutions
Table 2
Analytical results for real water sample applications.
Metal ion
Sample
Metal ion added (
μ
M)
Metal ion found (
μ
M)
Recovery %
RSD%
Cu
2+
Tap water
70
280
400.1% ± 0.44
0.11
Al-Aqiq dam water
70
460
657.0% ± 0.86
0.13
Distilled water
70
400
571.0% ± 0.45
0.08
Fe
3+
Tap water
70
40
57.14% ± 0.40
0.70
Al-Aqiq dam water
70
30
42.85% ± 0.65
1.52
Distilled water
70
70
100% ± 0.00
0.00
V
5+
Tap water
70
40
57.14% ± 0.75
1.32
Al-Aqiq dam water
70
65
92.85% ± 0.36
0.39
Distilled water
70
68
97.14% ± 0.90
0.93