Drugs

Conc. injected

Inter-day

Intra-day

µgmL-1

%RSD

%Rec

%RSD

%Rec

CAP

2.5

0.0073

101.11

0.073

101.11

5

0.0109

102.36

0.009

102.36

10

0.3261

100

0.361

100.02

15

0.0009

100

0.09

100.03

20

0.0005

99.826

0.005

99.26

25

0.0002

99.998

0.002

99.98

HCT

2.5

0.0047

99.997

0.047

99.9

5

0.0071

99.988

0.071

99.88

10

0.0024

100.12

0.024

100.1

15

0.0006

99.983

0.006

99.93

20

0.0006

99.968

0.006

99.98

25

0.0003

99.991

0

99.91

FRS

2.5

0.0075

98.72

0.007

98.72

5

0.0075

99.98

0.075

99.98

10

0.0019

99.73

0.019

99.73

15

0.0012

99.97

0.012

99.87

20

0.0005

99.97

0.005

99.87

25

0.0003

100.02

0.003

100.1


CAP: captopril; HCT: hydrochlorothiazide; FRS: furosemide
Table 4: Inter and intra-day precision of the proposed method for captopril, hydrochlorothiazide and furosemide (n=6).