Clark-Collip method

Clark-Collip method
1. (for calcium in serum) dilute the serum and add ammonium oxalate; wash the precipitate, dissolve with sulfuric acid, and titrate with potassium permanganate. 2. (for urea in blood) to 5 mL of blood filtrate add 1 mL of NH4Cl and heat in autoclave at 150°C for ten minutes. Make alkaline, distill into acid, and titrate, using methyl red as indicator.

Medical dictionary. 2011.

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