Table 1 Analytical performance data of the calibration graphs for the determination of NMV, and RIT by the proposed methods

Wavelength (nm)

222

222

∆λ (231–248)

253

253

∆λ (251–272)

Linearity range (µg/mL)

10–250

10–250

LOD (µg/mL)^a

1.37

2.65

2.69

3.22

2.43

2.75

LOQ (µg/mL)^b

4.14

8.04

8.14

9.75

7.35

8.35

Regression coefficient

0.9999

0.9998

0.9998

0.9996

0.9998

0.9997

Slope

0.0009

0.0004

0.0010

0.0010

0.0008

0.0028

S_b of slope^c

1.03E − 05

9.74E−06

2.32E−05

2.74E−05

1.58E−05

6.39E−05

Intercept

− 4.44E − 04

3.47E−18

− 2.93E−03

2.70E−03

2.11E−03

4.56E−03

S_a of intercept^d

3.73E-04

3.53E−04

8.41E−04

9.75E−04

5.75E−04

2.32E−03