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Table 5 In vitro release kinetic parameters of metformin from the microspheres

From: Formulation and development of metformin-loaded microspheres using Khaya senegalensis (Meliaceae) gum as co-polymer

Formulation code Zero order First order Higuchi Korsmeyer-Peppas
  r2 K r2 K r2 k r2 k n
FA 0.9594 32.85 0.8308 0.11 0.9552 171.47 0.9970 1.53 0.928
FB 0.9736 43.70 0.8657 0.13 0.9389 189.65 0.9990 1.70 1.210
FC 0.9417 44.11 0.8553 0.11 0.9538 232.20 0.9994 1.50 1.020