Obtaining and Characterizing Alginate/k-Carrageenan Hydrogel Cross-Linked with Adipic Dihydrazide

Table 3

The rate parameter (𝜏) of calcium partially (AC_1a–AC_5a) and covalently (oAC_1adh–oAC_5adh) cross-linked hydrogel samples.

Sample	Fit linear curves equations; Coefficient of determination (𝑅^2)	Rate parameter (τ) ±10% (min)
AC1a	𝑦=1.35𝑥+0.17; 𝑅^2=0.95	0.4
AC2a	𝑦=0.64𝑥+0.36; 𝑅^2=1	1.7
AC3a	𝑦=1.54𝑥+0.12; 𝑅^2=0.98	0.47
AC4a	𝑦=0.04𝑥+0.15; 𝑅^2=0.97	22.71
AC5a	𝑦=1.03𝑥−0.53; 𝑅^2=0.85	0.71
oAC1adh	𝑦=0.0548𝑥−0.002; 𝑅^2=0.85	18.25
oAC2adh	𝑦=0.0487𝑥+0.53; 𝑅^2=0.91	20.53
oAC3adh	𝑦=0.0992𝑥−0.36; 𝑅^2=0.93	10.08
oAC4adh	𝑦=0.0524𝑥+0.14; 𝑅^2=0.97	19.08
oAC5adh	𝑦=0.0767𝑥−0.5826; 𝑅^2=0.68	13.04