Samples

M

Taken

Found

X ± S.E

F-Values

t-Values

Capsule 

 

 

 

 

 

P

1.00 x10-2

1.03 x 10-2

103.0 ± 0.035

3.25

1.25

S

5.00 x10-6

4.88 x 10-6

97.6±0.019

2.54

2.13

C

7.50 x10-5

7.41 x 10-4

98.8 ± 0.079

1.58

2.55

Ampoule

 

 

 

 

 

P

1.00 x10-3

1.01 x 10-3

101.0± 0.058

1.54

1.88

S

1.50 x10-5ٍ

1.52 x 10-5

101.3± 0.071

2.11

1.23

C

1.00 x10-4

9.91 x 10-5

99.1± 0.035

3.12

1.15

Tablet

 

 

 

 

 

P

5.00x10-4

4.93 x 10-4

98.6 ± 0.012

3.56

2.45

S

1.00x10-5

1.00x 10-5

100.0± 0.015

2.89

1.58

C

2.00x10-5

2.02 x 10-5

101.0 ± 0.013

2.77

1.11

Drops

 

 

 

 

 

P

1.00x10-3

1.02x 10-3

102.0± 0.045

3.87

2.51

S

1.00x10-5

9.75 x 10-6

97.5± 0.020

3.01

2.79

C

5.00 x10-4

5.02 x 10-4

100.4 ± 0.011

1.59

1.77

Urine

 

 

 

 

 

S

1.00 x10-5

1.03 x 10-6

103.0± 0.044

4.21

3.24

C

1.00 x10-4

9.72 x 10-5

97.2± 0.020

3.98

3.18

Milk

 

 

 

 

 

S

1.00 x10-5

1.02 x 10-5

102.0± 0.032

3.88

3.56

C

1.00x10-4

9.62 x 10-5

96.2± 0.039

4.12

3.22
P: potentiometric titration, C: calibration curve, S: standard addition method. The number of replicate measurements = 4. X±S.E.: recovery±standard error. R.S.D. relative, standard deviation. The critical value of F = 9.28 and the critical value of t = 3.707.
Table 4: Determination of TDCl in different samples.