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A Rapid Quantitative Determination Method Of L-Ornithine

Guo-Cheng Su, Ai-Qing Huang, Zhang Wang

Based on Chinard’s estimation, a quantitative analysis and determination of L-ornithine is established with 25mg/ml acid ninhydrin prepared with mixed acid as reagent, color development was in boiling water with 100C for 60 minutes. A liner relationship is obtained between concentration of L-ornithine and optical density in the range 0 to 0.20 mol per ml, nd a liner regression equation is obtained.