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Table 6 Robustness of the suggested technique using 20.0 µg/mL of PAR and DAN

From: Hydro-organic mobile phase and factorial design application to attain green HPLC method for simultaneous assay of paracetamol and dantrolene sodium in combined capsules

Parameter

Concentration found (µg/mL)

% Found

PAR

DAN

PAR

DAN

Ethanol ratio, %

    

39

20.091

19.946

100.46

99.73

40

19.845

20.045

99.23

100.23

41

19.724

19.968

98.62

99.84

Mean

  

99.44

99.93

 ± S.D

  

0.94

0.26

%RSD

  

0.94

0.26

%Error

  

0.54

0.15

pH

    

4.4

19.768

19.874

98.84

99.37

4.5

20.056

19.963

100.28

99.81

4.6

20.137

20.011

100.69

100.06

Mean

  

100.49

99.75

 ± S.D

  

0.29

0.35

%RSD

  

0.29

0.35

%Error

  

0.20

0.20

TEA, %

    

0.19

19.921

20.056

99.61

100.28

0.2

20.079

20.017

100.41

100.08

0.21

19.840

20.084

99.20

100.42

Mean

  

99.74

100.26

 ± S.D

  

0.62

0.17

%RSD

  

0.62

0.17

%Error

  

0.36

0.11

  1. N.B. Each result is the average of three separate determinations
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BMC Chemistry

ISSN: 2661-801X

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