From: Simultaneous electrochemical sensing of dihydroxy benzene isomers at cost-effective allura red polymeric film modified glassy carbon electrode
Sample number
Tap water containing CC (μM)
HQ added (μM)
HQ found (μM)
Recovery (%)
1
10
15
15.1
100.67
2
20
20.4
102.0
3
25
24.8
99.2
4
30
30.4
101.33