Compound Specific Extraction of Camptothecin from Nothapodytes nimmoniana and Piperine from Piper nigrum Using Accelerated Solvent Extractor

Figure 2

(a) Calibration curve of camptothecin; (b) calibration curve of piperine; (c) standard camptothecin (40 μg mL⁻¹); (d) standard piperine (50 μg mL⁻¹); (e) camptothecin from stem of N. nimmoniana extracted by ASE (Cycle 1); (f) piperine from fruits of P. nigrum extracted by ASE (Cycle 1).

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