Ghaedi M, Shahamiri A, Mirtamizdoust B, Hajati S, Taghizadeh F
Chemistry Department, Yasouj University, Yasouj 75914-35, Iran.
Chemistry Department, Yasouj University, Yasouj 75914-35, Iran.
Spectrochim Acta A Mol Biomol Spectrosc. 2015 Mar 5;138:878-84. doi: 10.1016/j.saa.2014.10.077. Epub 2014 Nov 6.
A copper (Cu(2+)) ion-selective bulk optode was constructed by using (N'(1)E,N'(2)E)-N'(1),N'(2)-bis(pyridine-2-ylmethylene)oxalohydrazide as ionophore and NaTPB in DBP matrices. Central composite design under response surface methodology was applied for the optimization of variables including pH, amount of ligand, amount of additive and response time which significantly affect the response of proposed sensor. At optimum specified conditions, the high stability, reproducibility and relatively long lifetime of the optical sensor suggest its ability for accurate and precise monitoring of Cu(2+) ion content in various real samples over a concentration range of 1.6×10(-6) to 3.17×10(-5)molL(-1) with a limit of detection of 8.1×10(-7)molL(-1) during response time 6.9min. The proposed optical sensor was successfully applied for the determination of Cu(2+) ion in tap water and different samples.
以（N'(1)E,N'(2)E）-N'(1),N'(2)-双（吡啶-2-基亚甲基）草酰肼为离子载体，在邻苯二甲酸二丁酯（DBP）基质中加入四苯基硼酸钠（NaTPB），构建了一种铜（Cu(2+)）离子选择性整体光极。采用响应面法中的中心复合设计对包括pH值、配体用量、添加剂用量和响应时间等显著影响所提出传感器响应的变量进行优化。在最佳指定条件下，该光学传感器具有高稳定性、重现性和相对较长的寿命，表明其能够在1.6×10(-6)至3.17×10(-5)molL(-1)的浓度范围内准确、精确地监测各种实际样品中的Cu(2+)离子含量，在响应时间6.9分钟时检测限为8.1×10(-7)molL(-1)。所提出的光学传感器成功应用于自来水和不同样品中Cu(2+)离子的测定。
