Table 3 Robustness results of the proposed HPLC method expressed as %RSD of the drug assay.

From: Dietary supplement mislabelling: case study on selected slimming products by developing a green isocratic HPLC method for their quality control

Condition

Caffeine

resveratrol

Raspberry Ketone

Octopamine

Synephrine

Hordenine

2-phenethyl amine

Flow rate 0.9 mL/min

Flow rate 0.85 mL/min

0.62

1.85

0.42

1.04

1.19

1.77

1.69

Flow rate 0.95 mL/min

0.56

0.32

1.53

0.52

1.74

0.93

0.99

Acetonitrile: 0.1% phosphoric acid

50:50,%v/v

Acetonitrile: 0.1% phosphoric acid 52:48,%v/v

0.65

0.44

1.14

0.39

1.7

1.34

1.44

Acetonitrile: 0.1% phosphoric acid

48:52,%v/v

0.2

1.14

0.29

0.35

1.25

0.41

0.56

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