Table 2 Calibration parameters of 05 bioactive markers.

From: Simultaneous quantification of five bioactive markers for standardization of ayurvedic polyherbal formulation Jwarahara Kwatha Choornam using HPTLC

Parameters

Name of the bioactive markers

Andrographolide (AG)

Piperine (PP)

Picroside-I (P-I)

Picroside-II (P-II)

Alpha-Cyprone (AC)

Linearity range (µg)

0.5−5

0.5−5

0.1−1.0

0.1−1.0

0.1−1.0

Equation

y = 0.0026x + 0.0024

y = 0.0048x + 0.0168

y = 0.013x + 0.0019

y = 0.0054x + 0.0002

y = 0.0127x + 0.0013

LOD (µg)

0.7682

0.847768548

0.1867

0.0690

0.1503

LOQ (µg)

2.32787

2.5689956

0.5658

0.2091

0.4553

Regression coefficient (r2)

0.9861

0.9830

0.9792

0.9971

0.9866

Rf

0.563 ± 0.005

0.706 ± 0.015

0.28 ± 0.018

0.186 ± 0.012

0.803 ± 0.006

Inter-Day Precision

(% RSD)

0.45%−1.92%

0.17%−1.52%

0.85%−1.90%

0.53%−1.87%

0.50%−1.89%

Intra-Day Precision

(% RSD)

0.86%−1.92%

0.33% −0.90%

0.51%−0.91%

0.90%−1.91%

0.75%−1.61%

Accuracy

(% recovery)

95%−103%

96%−98%

98%−102%

99%−102%

97%−101%

Wavelength (nm)

229

343

279

264

254