An Ecofriendly and Stability-Indicating HPLC Method for Determination of Permethrin Isomers: Application to Pharmaceutical Analysis

Table 3

Partial and expanded uncertainties associated to the analytical results (expressed as % relative standard deviation).

Uncertainties	Trans-isomer	Cis-isomer
𝑈standard(%)	0.07	0.07
𝑈calibration (%)	2.70	4.04
𝑈precision (%)	1.09	1.10
𝑈accuracy (%)	0.25	0.27
𝑈expanded (%)	5.84	8.39
𝑈expanded (μg/mL)	0.39	0.19
Concentration (μg/mL)	6.74	2.24