Development of Isocratic RP-HPLC Method for Separation and Quantification of L-Citrulline and L-Arginine in Watermelons

Figure 6

Comparative chromatographic profiles showing isocratic RP-HPLC separation of flesh and rind from juice extracts and methanol extracts of red watermelon and yellow crimson watermelon using Gemini C₁₈. Red watermelon: (a) flesh juice extract, (b) rind juice extract, (c) crude flesh extract, and (d) crude rind extract. Yellow crimson watermelon: (e) flesh juice extract, (f) rind juice extract, (g) crude flesh extract, and (h) crude rind extract. The peaks marked represent (1) L-arginine and (2) L-citrulline.

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