Faridbod Farnoush, Ganjali Mohammad Reza, Dinarvand Rassoul, Norouzi Parviz, Riahi Siavash
Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran.
Medical Nanotechnology Research Centre, Medical Sciences/University of Tehran, Tehran, P.O. Box 14155-6451, Iran.
Sensors (Basel). 2008 Mar 11;8(3):1645-1703. doi: 10.3390/s8031645.
Ionophore incorporated PVC membrane sensors are well-established analyticaltools routinely used for the selective and direct measurement of a wide variety of differentions in complex biological and environmental samples. Potentiometric sensors have someoutstanding advantages including simple design and operation, wide linear dynamic range,relatively fast response and rational selectivity. The vital component of such plasticizedPVC members is the ionophore involved, defining the selectivity of the electrodes' complexformation. Molecular recognition causes the formation of many different supramolecules.Different types of supramolecules, like calixarenes, cyclodextrins and podands, have beenused as a sensing material in the construction of ion selective sensors. Schiff's bases andcrown ethers, which feature prominently in supramolecular chemistry, can be used assensing materials in the construction of potentiometric ion selective electrodes. Up to now,more than 200 potentiometric membrane sensors for cations and anions based on Schiff's bases and crown ethers have been reported. In this review cation binding and anioncomplexes will be described. Liquid membrane sensors based on Schiff's bases and crownethers will then be discussed.
掺入离子载体的聚氯乙烯(PVC)膜传感器是成熟的分析工具,常用于对复杂生物和环境样品中的多种不同离子进行选择性直接测量。电位传感器具有一些突出优点,包括设计和操作简单、线性动态范围宽、响应相对较快以及选择性合理。这种增塑PVC膜的关键成分是所涉及的离子载体,它决定了电极络合物形成的选择性。分子识别导致形成许多不同的超分子。不同类型的超分子,如杯芳烃、环糊精和开链冠醚,已被用作构建离子选择性传感器的传感材料。在超分子化学中具有突出地位的席夫碱和冠醚,可作为构建电位离子选择性电极的传感材料。到目前为止,已经报道了200多种基于席夫碱和冠醚的阳离子和阴离子电位膜传感器。在这篇综述中,将描述阳离子结合和阴离子络合物。然后将讨论基于席夫碱和冠醚的液膜传感器。