Drug

Linearity
µgmL-1

Intercept

Slope

R2

SEa

SEEb

LOD
ngmL-1

LOQ
ngmL-1

Isobestic point

CBZ

0.4-12

33695

68281

0.9986

0.5939

0.9808

4.0

13

MEL

0.5-16

73993

92135

0.9987

0.2327

0.3803

3.0

10

IBU

0.25-8.0

-6294

191713

0.9999

0.0400

0.0226

1.0

3.0

MEF

0.25-8.0

39386

124225

0.9984

0.3661

0.6025

13

40

Serum

CBZ

-

-15195

97939

0.9998

0.0123

0.0106

4.0

13

MEL

-

89152

86724

0.9988

0.3479

0.5512

3.0

9.0

IBU

-

-9271

193921

0.9989

0.0085

0.0071

2.0

5.0

MEF

-

6939

175424

1.0000

0.4588

0.5480

16

48

a=standard error estimate, b=standard error
Table 2: Regression characteristics and sensitivity of the method at isobestic point.