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Table 7 Results of recovery test for Lasix tablets

From: Application of ion pair complexes to design novel potentiometric membrane sensors for direct determination of frusemide in pharmaceuticals

Sensor

FUR from tablet extract, mmol/L

Pure FUR added,

mmol/L

Total

FUR found, mmol/L

%FUR recovered*

%RSD

FUR-BPB

1.50

1.50

1.50

0.75

1.50

2.25

2.24

2.97

3.71

98.67

98.00

98.22

2.32

2.11

2.56

FUR-BCG

1.50

1.50

1.50

0.75

1.50

2.25

2.23

2.98

3.73

97.33

98.67

99.11

1.98

2.03

2.64

  1. *Average of 3 measurements