UPLC ( n=4)

Concentration
 (μgmL-1)

acetonitrile : H2O  (78:22 v/v)

acetonitrile : H2O  (82:18 v/v)

Measured
concentration

 

± S.D.,

 

R.S.D (%)

Measured
Concentration

 

± S.D.,

 

R.S.D. (%)

10

9.948

0.042

0.422

9.934

0.051

0.514

20

20.120

0.150

0.746

20.143

0.121

0.598

30

30.019

0.182

0.608

30.025

0.188

0.626

40

40.132

0.412

1.027

40.109

0.407

1.014

50

50.020

0.298

0.596

49.954

0.237

0.474

HPLC( n=4)

Concentration
 (μgmL-1)

Acetonitrile : 10mM Amm. acetate   
(83:17 v/v)

Acetonitrile : 10 mM Amm. acetate 
(87:13 v/v)

Measured
concentration

 

± S.D.,

 

R.S.D.(%)

Measured
concentration

 

± S.D.,

 

R.S.D. (%)

30

30.225

0.299

0.989

30.262

0.303

1.002

60

59.940

0.217

0.362

60.077

0.160

0.266

90

89.996

0.127

0.141

89.877

0.442

0.492

120

120.236

0.328

0.272

120.810

0.767

0.635

150

150.226

0.196

0.130

150.573

0.315

0.209

UPLC = Ultra performace liquid chromatography
HPLC = High performance liquid chromatography
n = number of replicates
Table 5: Data for robustness.