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(A) UPLC-ESI-MS total ion chromatogram (B) and extracted ion chromatogram from Aconitum herbs and processed products. (A1, B1) Radix Aconiti kusnezoffii, (A2, B2) Radix Aconiti Kusnezoffii Praeparata, (A3, B3) Radix Aconiti, and (A4, B4) Radix Aconiti Praeparata. Peaks 1 to 16 are shown in Table 1.
