Sample

Number

Amount of Timolol added in µg

Amount of Timolol found in µg

% of Assay

Average Result (%)

RSD (%)

95% confidence Interval

1

27320.00

27380.10

100.22

99.98

0.12

99.98 ± 0.10

2

27320.00

27300.88

99.93

3

27320.00

27311.80

99.97

4

27320.00

27311.80

99.97

5

27320.00

27295.41

99.91

6

27320.00

27289.95

99.89