摘要
研究了茶氨酸在一种阴离子交换树脂HZ-202上的动态吸附与解吸过程,确定了HZ-202阴离子交换树脂吸附解吸茶氨酸的较优操作参数。结果表明,HZ-202对茶氨酸有较好的吸附能力,动态吸附的较优参数为茶氨酸浓度1.0 mg.mL-1、上样流速0.75 mL.min-1、料液pH值6、料液温度25℃,吸附率超过98%;洗脱的较优参数为洗脱剂NaOH浓度为0.02 mol.L-1、洗脱速度0.75 mL.min-1下,解吸率为86.22%。
The adsorption and desorption behaviors of L-theanine with HZ-202 anion exchange resin were investigated.The dynamic kinetics of HZ-202 anion exchange resin was studied,and the optimum parameters of adsorption were procured.It was shown that the pH value and concentration of L-theanine,the flow rate and temperature affected the kinetic curves of HZ-202 anion exchange resin to L-theanine.The optimum adsorption conditions were the flow rate 0.75 mL.min-1,sample concentration 1.0 mg.mL-1,pH 6,and temperature 25℃;And the optimum desorption conditions were the eluent flow rate 0.75 mL.min-1,eluent concentration 0.02 mol.L-1.In these conditions,the adsorption rate was 98%,while the desorption rate was 86.22%.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2013年第2期254-257,共4页
Journal of Anhui Agricultural University
基金
国家十二五科技支撑计划项目(2011BAD01B03)资助
