CAJ | 학술논문

制备了以N，N′-二（N-异丙基-N-2-羟乙基）-1，3-苯二甲酰胺（L）为载体的PVC膜铜离子选择性电极，研究了电极膜中增塑剂种类及载体和离子定域体（ KTpClPB）含量对电极性能的影响。结果表明：此电极对Cu2＋具有很好的能斯特响应性能，在10-3～10-1 mol/L的浓度范围内呈良好的线性关系，检测下限为2.86×10-4 mol/L，电极响应斜率为（29.1±0.2） mV/decade。选择性上，碱金属、碱土金属及大多数过渡金属离子对Cu2＋的测定基本无干扰。该电极用于废水中Cu2＋含量的测定，并且能对实际样品中Cu2＋含量的直接测定。
제비료이N，N′-이（N-이병기-N-2-간을기）-1，3-분이갑선알（L）위재체적PVC막동리자선택성전겁，연구료전겁막중증소제충류급재체화리자정역체（ KTpClPB）함량대전겁성능적영향。결과표명：차전겁대Cu2＋구유흔호적능사특향응성능，재10-3～10-1 mol/L적농도범위내정량호적선성관계，검측하한위2.86×10-4 mol/L，전겁향응사솔위（29.1±0.2） mV/decade。선택성상，감금속、감토금속급대다수과도금속리자대Cu2＋적측정기본무간우。해전겁용우폐수중Cu2＋함량적측정，병차능대실제양품중Cu2＋함량적직접측정。
A novel copper (Ⅱ) ion-selective polyvinyl chloride ( PVC) membrane electrode was prepared using N,N′-bis(N-Isopropyl-N-2-hydroxyethyl)-1,3-benzenedicarboxamide(L) as the ionophore.The influences of the nature of plasticizers and the amounts of the incorporated ionophore and ionic additive ( KTpClPB) on the response characteristics of the electrode were studied.The electrode exhibited Nernstian response and fairly good selectivity with the response slope of (29.1 ±0.2 ) mV/decade in the range of 10 -3 ~10 -1 mol/L, and the detection limit was 2.86 × 10 -4 mol/L.The electrode had a highly selectivity for copper ion over alkali , alkline earth and common transition metal ions.The electrode could be used for the determination of Cu 2+in the waste water , and for the determination of Cu 2+content in real samples.