CAJ | 학술논문

以莠去津为模板分子，采用沉淀聚合法制备了莠去津分子印迹聚合物，并将其作为离子载体制备了低检出限莠去津分子印迹聚合物膜离子选择性电极。优化的电极膜组分（质量分数）为：PVC 30.1％、o-NPOE 60.8％、NaTF-PB 1.5％、MIP 7.6％，筛选适宜的内充液为0.01 mol·L-1 NaCl 溶液，制得的电极在1.0×10-7～1.0×10-3 mol·L-1的浓度范围内对莠去津离子呈能斯特响应，响应斜率为53.9 mV·decade-1，检出限为1.9×10-8 mol·L-1。该电极具有良好的选择性和稳定性，已成功应用于自来水中莠去津的测定。
이유거진위모판분자，채용침정취합법제비료유거진분자인적취합물，병장기작위리자재체제비료저검출한유거진분자인적취합물막리자선택성전겁。우화적전겁막조분（질량분수）위：PVC 30.1％、o-NPOE 60.8％、NaTF-PB 1.5％、MIP 7.6％，사선괄의적내충액위0.01 mol·L-1 NaCl 용액，제득적전겁재1.0×10-7～1.0×10-3 mol·L-1적농도범위내대유거진리자정능사특향응，향응사솔위53.9 mV·decade-1，검출한위1.9×10-8 mol·L-1。해전겁구유량호적선택성화은정성，이성공응용우자래수중유거진적측정。
A polymeric membrane ion-selective electrode with a low detection limit for determination of at-razine is described in this paper.The proposed electrode is based on a molecularly imprinted polymer(MIP)as selective recognition element,which can be synthesized by precipitation method using atrazine as the template. The optimum membrane constituents are as follows:PVC 30.1%,o-NPOE 60.8%,NaTFPB 1.5%,MIP 7.6%, and the inner filling solution is 0.01 mol·L-1 NaCl.Under optimized conditions,the electrode exhibits near-Nernstian response (53.9 mV·decade-1 )to the protonated atrazine over a wide concentration range of 1.0× 10-7 ~1.0×10-3 mol·L-1 with a low detection limit of 1.9×10-8 mol·L-1 .The proposed sensor shows ex-cellent selectivity and long-term stability,and has been successfully applied to determination of atrazine content in tap water.