The artemisinin control solution was used to prepare a series of control solutions for the peak area measurement and recording. Linear regression was conducted with the mass concentration of the reference substance (μg/mL) as the x-coordinate (x) and the peak area as the y-coordinate (y) and was forced to go through the far point. The standard curve equation was y = 317.42x, r = 0.99999. The results showed that the concentration of artemisinin had a good linear correlation with the peak area within the range of 150.76–3015.2 μg/mL.
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