From: Simultaneous electrochemical sensing of dihydroxy benzene isomers at cost-effective allura red polymeric film modified glassy carbon electrode
Sample number
Tap water containing HQ (μM)
CC added (μM)
CC found (μM)
Recovery (%)
1
10
15
14.7
98.0
2
20
20.2
101.0
3
25
24.9
99.6
4
30
30.2
100.67