Table 3 Precision data of pholcodine and ephedrine using the proposed spectrofluorimetric methods.

From: Determination of pholcodine alone or in combination with ephedrine in human plasma using fluorescence spectroscopy

 

Concentration(μg/mL)

Intra-day

Inter-day

\({\overline{\text{x}}}\)  ± S.D

% RSD

% Error

\({\overline{\text{x}}}\) ± S.D

% RSD

% Error

Method I [PHL]

0.20

100.39 ± 1.82

1.05

0.61

100.75 ± 0.54

0.54

0.31

0.60

101.14 ± 0.66

0.65

0.38

101.05 ± 0.87

0.86

0.50

2.0

100.51 ± 0.91

0.90

0.52

100.65 ± 1.50

1.51

0.87

Method II [PHL]

0.4

100.83 ± 1.07

1.06

0.61

101.15 ± 2.53

2.53

1.46

2.0

101.76 ± 0.55

0.54

0.31

100.58 ± 1.27

1.27

0.73

4.0

99.81 ± 0.53

0.53

0.31

100.30 ± 1.86

1.86

0.76

Method II [EPH]

0.2

99.49 ± 1.98

1.99

1.15

98.94 ± 1.10

1.11

0.64

0.6

100.67 ± 1.55

1.54

0.89

101.55 ± 0.97

0.95

0.55

0.8

100.51 ± 0.91

0.90

0.52

98.50 ± 1.22

1.24

0.72

Back to article page