Synthesis and Characteristics of Valeric Acid-Zinc Layered Hydroxide Intercalation Material for Insect Pheromone Controlled Release Formulation

Table 5

Parameters derived from the fitting of the data obtained from the release of VA from VAN intercalation compound into various pH solutions using parabolic diffusion, pseudo-first-order, and pseudo-second-order kinetic expression.

pH	Saturated release (%)	Correlation coefficient,			Pseudo-second order
		Pseudo-first order	Pseudo-second order	Parabolic diffusion	Rate constant, (mg/min) × 10^−5
4	41	0.9921	0.9984	0.9336	2.49
6.5	27	0.9740	0.9989	0.9325	1.48
8	33	0.9871	0.9968	0.9625	1.87