摘要
以淀粉和 3 ,5 -二硝基苯甲酰氯为原料合成了一种淀粉衍生物—— 3 ,5 -二硝基苯甲酸淀粉酯 (DNBZ-ST) ,采用红外光谱、元素分析、核磁、热重等手段对产物结构进行了表征 ,确定了合成 DNBZ-ST的最佳条件。DNBZ-ST对肌酐有较好的吸附性能 ,在肌酐溶液浓度为 1 0 0 mg/L、吸附温度为 3 7℃、介质 p H=7的条件下 ,DNBZ-ST(取代度 DS=2 .0 9)对肌酐的最大吸附量达 2 5 mg/g。
A novel starch derivative--3,5 dinitrobenzoic acid ester of starch(DNBZ ST) with different degree of substitution(DS) was prepared by reaction of starch with 3,5 dinitrobenzoyl chloride . The structures of products were characterized by FTIR, elemental analysis, 13 C NMR and TG. The best reaction conditions were given. The DNBZ ST has a good adsorption property for creatinine . The highest adsorption capacity was 25 0 mg creatinine per gram of DNBZ ST(DS=2 09) at 37 ℃, pH=7 and creatinine concentration in solution of 100 mg/L.
出处
《应用化学》
CAS
CSCD
北大核心
2002年第9期858-861,共4页
Chinese Journal of Applied Chemistry
