Adsorption of β-sitosterol on molecularly imprinted polymer

International Symposium on Current Progress in Functional Materials

Soekamto, N.H.^1 ; St Fauziah^2 ; Taba, P.^2 ; Amran, M.B.^3

Organic Chemistry Laboratory, Universitas Hasanuddin, Jl. Perintis Kemerdekaan, Km 10, Tamalanrea, Makassar

90245, Indonesia^1

Physical Chemistry Laboratory, Universitas Hasanuddin, Jl. Perintis Kemerdekaan, Km 10, Tamalanrea, Makassar

90245, Indonesia^2

Analitical Chemistry Laboratory, Institute Technology of Bandung, Jl. Ganesa No. 10, Bandung

40132, Indonesia^3

关键词: Adsorption capacities;    Adsorption data;    Contact time;    Cross linking agents;    Ethylene glycol dimethacrylate;    Molecularly Imprinted Polymer;    Pseudo-second order model;    Template molecules;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/188/1/012048/pdf
DOI  :  10.1088/1757-899X/188/1/012048

来源: IOP

【 摘 要 】

Molecularly Imprinted Polymer (MIP) has been synthesized using methacrylate acid (MAA) as a monomer with hydroxyl and carbonyl functional groups that can react with ethylene glycol dimethacrylate (EGDMA) as a cross-linking agent, and β-sitosterol as a template molecule. After the template was removed from the polymer, MIP-TFMAA was obtained. The MIP was used to adsorb β-sitosterol. The amount of β-sitosterol in solution after the adsorption was determined by HPLC. The results showed that the MIP was able to adsorb well the β-sitosterol at a pH 7 and the contact time of 90 min. The kinetic adsorption data obtained for β-sitosterol followed the pseudo-second-order model and consistent with the model of Feundlich isothermal with the adsorption capacity of 1.05 mg/g. The MIP was selective on β-sitosterol because it was able to adsorb β-sitosterol better than cholesterol.