Nominal Concentration (ng/ml)

Long Term Plasma

LQC

MQC

HQC

Sample at 70°

30

750

1200

After  1 week

27.75

743.44

1176.32

After  2week

23.98

757.16

1202.29

After  4 week

28.32

739.95

1185.76

Mean

26.68

746.85

1188.12

S.D (+/-)

2.358

9.098

13.145

C.V. (%)

8.839

1.218

1.106

% Nominal

112.430

100.422

101.000

N

3

3

3

Nominal Concentration (ng/ml)

Standard Stock solutions

LQC

MQC

HQC

 

30

750

1200

After  3 hr

29.52

754.32

1192.84

After   6 hr

28.56

749.42

1205.57

After   4 Week

26.72

749.75

1195.49

Mean

28.2667

751.163

1197.97

S.D (+/-)

1.423

2.739

6.717

C.V. (%)

5.034

0.365

0.561

% Nominal

106.132

99.845

100.170

N

3

3

3

Table 6b: Stability study of Losartan Potassium.
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