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Journal of Analytical Methods in Chemistry
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Journal of Analytical Methods in Chemistry
/
2018
/
Article
/
Tab 4
/
Research Article
Development and Validation of a Versatile UPLC-PDA Method for Simultaneous Determination of Paracetamol, Tizanidine, Aceclofenac, and Nimesulide in Their New Combinations
Table 4
Intra- and interday precision results for the proposed UPLC method.
Analyte
Concentration taken (
g·mL
−1
)
Concentration found (
g·mL
−1
)
Recovery
(%)
Intraday
Interday
Recovery (%)
RSD (%)
Recovery (%)
RSD (%)
PAR
QCL
195
193.34
99.15
99.03
0.45
99.03
0.36
QCM
260
257.72
99.12
98.28
0.13
98.28
0.45
QCH
390
384.44
98.57
98.38
0.37
98.38
0.67
TIZ
QCL
1.2
1.19
99.13
98.51
0.62
98.57
0.12
QCM
1.6
1.60
99.93
99.01
0.77
99.00
0.32
QCH
2.4
2.36
98.51
98.74
0.89
98.47
0.36
ACF
QCL
60
58.96
98.27
97.49
0.56
99.81
0.52
QCM
80
78.66
98.33
97.70
0.20
98.61
1.25
QCH
120
118.26
98.55
97.91
0.23
97.52
0.37
NIM
QCL
60
59.30
98.84
101.26
0.34
101.30
0.60
QCM
80
98.60
98.56
101.16
0.56
100.79
0.36
QCH
120
98.33
98.33
100.23
0.94
100.10
0.53
Average of three determinations.