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Updated: Aug 12, 2026

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Quantitative Methods to Study Protein Arginine Methyltransferase 1-9 Activity in Cells
Published on: August 7, 2021
A simplified procedure for the estimation of arginine in plasma and urine using arginase
Abstract:
To ensure reliable arginine estimation, other compounds giving positive results with Chinard's ninhydrin reaction were removed by simple ion-exchange chromatography. Eluted arginine was converted to ornithine by arginase and estimated using Chinard's ninhydrin reaction. Plasma arginine level in adults was in the range 56--98 mumol/l, and urine arginine in the range 0.58--1.77 mg/day.
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