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Journal of Analytical Methods in Chemistry
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Journal of Analytical Methods in Chemistry
/
2018
/
Article
/
Tab 1
/
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 1
Analytical parameters for cited drugs by the proposed UPLC method.
Parameter
PAR
TIZ
ACF
NIM
Linear range (
µ
g·mL
−1
)
81.25–487.5
0.5–3.5
25–150
25–150
a
(intercept)
958.16
89.25
563.80
−1423.8
S
a
(standard deviation of the intercept)
146.30
17.36
323.92
244.29
b
(slope)
84.92
1500.4
366.72
412.42
S
b
(standard deviation of the slope)
0.47
7.98
3.41
2.362
r
(correlation coefficient)
0.9999
0.9999
0.9997
0.9999
r
2
(determination coefficient)
0.9998
0.9998
0.9994
0.9998
SD of residuals (Sy.x)
174.21
22.17
338.72
323.91
LOD (limit of detection,
µ
g·mL
−1
)
5.68
0.03
2.92
1.96
LOQ (limit of quantitation,
µ
g·mL
−1
)
17.22
0.11
8.83
5.96