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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