Skip to main content

Table 4 HPLC-PDA method detection and quantification limit of eleven polyphenolic compounds with linearity

From: Development of aqueous-based multi-herbal combination using principal component analysis and its functional significance in HepG2 cells

Compound name Linearity range (μg/ml) Detection limit (μg/ml) Quantitative limit (μg/ml) Regression equation, f(x) Correlation coefficient (r)
Gallic acid 10.4–667 0.0109 0.0330 7.01 × 10−5(x) 0.9998
Catechin 10.4–667 0.0650 0.197 4.19 × 10−4(x) 0.9999
Chlorogenic acid 5.21–333 0.0202 0.0612 1.31 × 10−4(x) 0.9999
Epicatechin 10.4–667 0.0408 0.124 2.63 × 10−4(x) 0.9999
Caffeic acid 5.21–333 0.0111 0.0337 7.19 × 10−5(x) 0.9999
Umbelliferone 5.21–333 0.0330 0.100 2.14 × 10−4(x) 0.9999
p-Coumaric acid 5.21–333 0.00528 0.0160 3.41 × 10−5(x) 0.9999
Rutin 10.4–667 0.0398 0.121 2.58 × 10−4(x) 0.9999
Ellagic acid 5.21–333 0.0336 0.102 2.20 × 10−4(x) 0.9999
Quercetin 5.21–333 0.0213 0.0646 1.37 × 10−4(x) 0.9999
Kaempferol 5.21–333 0.0659 0.200 4.26 × 10−4(x) 0.9996