商洛学院学报
商洛學院學報
상락학원학보
JOURNAL OF SHANGLUO UNIVERSITY
2011年
4期
42-45
,共4页
分子印迹技术%β-环糊精聚合物微球%对硝基甲苯%索氏提取
分子印跡技術%β-環糊精聚閤物微毬%對硝基甲苯%索氏提取
분자인적기술%β-배호정취합물미구%대초기갑분%색씨제취
molecular imprinting technique%β-Cyclodextrin polymer microspheres%p-nitrotoluene%soxhlet extraction
以β-环糊精(β-CD)为单体,对硝基甲苯为模型分子,环氧氯丙烷(ECH)为交联剂,用反相乳液法合成了聚合物微球,经索氏提取器洗脱掉对硝基甲苯后制得分子印迹β-环糊精聚合物微球(MI-β-CDPMs)。利用静态吸附方法对MI-β-CDPMs的吸附性能和Scatchard曲线分析进行研究,结果表明:球状MI-β-CDPMs对水溶液中的对硝基甲苯分子有高负载量和高效识别性;高亲和位点的解离常数为Kd1=12.4069mmol/L,最大表观结合量Qmax1=3.5794mmol/g,低亲和位点的解离常数为Kd2=55.096mmol/L,最大表观结合量Qmax2=10.8893mmol/g。
以β-環糊精(β-CD)為單體,對硝基甲苯為模型分子,環氧氯丙烷(ECH)為交聯劑,用反相乳液法閤成瞭聚閤物微毬,經索氏提取器洗脫掉對硝基甲苯後製得分子印跡β-環糊精聚閤物微毬(MI-β-CDPMs)。利用靜態吸附方法對MI-β-CDPMs的吸附性能和Scatchard麯線分析進行研究,結果錶明:毬狀MI-β-CDPMs對水溶液中的對硝基甲苯分子有高負載量和高效識彆性;高親和位點的解離常數為Kd1=12.4069mmol/L,最大錶觀結閤量Qmax1=3.5794mmol/g,低親和位點的解離常數為Kd2=55.096mmol/L,最大錶觀結閤量Qmax2=10.8893mmol/g。
이β-배호정(β-CD)위단체,대초기갑분위모형분자,배양록병완(ECH)위교련제,용반상유액법합성료취합물미구,경색씨제취기세탈도대초기갑분후제득분자인적β-배호정취합물미구(MI-β-CDPMs)。이용정태흡부방법대MI-β-CDPMs적흡부성능화Scatchard곡선분석진행연구,결과표명:구상MI-β-CDPMs대수용액중적대초기갑분분자유고부재량화고효식별성;고친화위점적해리상수위Kd1=12.4069mmol/L,최대표관결합량Qmax1=3.5794mmol/g,저친화위점적해리상수위Kd2=55.096mmol/L,최대표관결합량Qmax2=10.8893mmol/g。
Molecularly imprinted β-cyclodextrin polymeric microspheres(MI-β-CDPMs) were prepared in inverse emulsion with β-cyclodextrin as material,p-nitrotoluene as template molecules and epichlorohydrin as crosslinking agent by soxhlet extraction.The adsorption characteristics of the MI-β-CDPMs and the Scatchard plot were studied by the method of static adsorption.The result indicated that MI-β-CDPMs showed high load,affinity and selectivity for the template molecules in aqueous solution.The calculated dissociation constant Kmax1 and apparent maximum number Qmax2 of binding sites with high affinity were 12.4069mmol/L and 3.5794mmol/g respectively,while Kd2 and Q of binding sites with low affinity were 55.096mmol/L and 10.8893mmol/g.