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International Journal of Electrochemistry
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International Journal of Electrochemistry
/
2016
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Article
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Tab 4
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Research Article
Utility of Activated Glassy Carbon and Pencil Graphite Electrodes for Voltammetric Determination of Nalbuphine Hydrochloride in Pharmaceutical and Biological Fluids
Table 4
Determination of NP. HCl in urine samples using PGE and GCE electrodes.
Sample
Urine spiked (
µ
M)
Detected (
µ
M)
Recovery %
RSD %
PGE
1
3.33
3.31
99.39
1.13
2
6.66
6.70
100.60
0.72
3
10.0
9.97
99.7
0.43
4
13.3
13.29
99.92
0.68
5
16.6
16.51
99.46
1.24
GCE
1
12.5
12.39
99.12
0.942
2
25.0
24.71
98.84
1.22
3
37.5
37.1
98.93
1.07
4
50.0
50.23
100.46
0.88
5
62.5
62.12
99.39
0.954