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Table 2 Recovery and precision test of the developed HPLC analysis method

From: Simultaneous determination of five diuretic drugs using quantitative analysis of multiple components by a single marker

Studied drug Measured concentrations
(μg/mL)
Accuracy
%
Precision RSD (%)
Intra-day Inter-day
Etacrynic acid 40.0 98.3 0.9 1.5
  50.0 97.7 0.5 0.4
  60.0 100.4 0.1 0.5
Torasemide 40.0 96.7 0.4 0.7
  50.0 99.1 0.3 0.8
  60.0 99.6 1.5 0.9
Furosemide 40.0 100.6 0.5 1.3
  50.0 102.1 0.2 1.2
  60.0 98.3 1.2 2.3
Azosemide 40.0 97.2 0.6 1.5
  50.0 98.2 0.3 0.6
  60.0 98.4 0.9 0.5
Bumetanide 40.0 97.5 1.3 1.7
  50.0 100.8 0.8 1.9
  60.0 99.6 0.7 1.4