Development of Zinc Ion Sensor for Monitoring of Surface Coating Processes and its Use in Practical Electroplating Solutions

用于监测表面涂层过程的锌离子传感器的开发及其在实际电镀解决方案中的应用

• 批准号: 07555571
• 负责人: KAMATA Satsuo
• 金额: $ 0.77万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555571/
• 关键词: Zinc ion sensor; Zinc bis [di (2-ethylhexyl) dithiophosphate]; Tetra-isobutyl thiuram disulfide; Membrane-coated-carbon rod ion-selective electrode; Surface plasmon resonance zinc-ion sensor; Electroplating bath; 亜鉛センサー; ジアルキルジチオリン酸亜鉛; チウラムジスルフィド

Two variations of potentiometric sensors for Zn (II) were developed for monitoring of zinc concentration in electroplating bath solutions. They are based on membrane-coated-carbon rod electrodes but differ in the nature of the sensing component of the membrane. One contains an ion exchange type, viz. Zinc Bis [di (2-ethylhexyl) dithiophosphate] (ZnDTP) while the other incorporates a neutral ionophore i.e. tetra-isobutyl thiuram disulfide (TiBTDS) as the sensing material. Both the sensors showed good response to the detection of aqueous zinc (II) over a wide range of concentration. The ZnDTP sensor provided a detection limit of 6*10^<-6> M with the working pH range of 4.0-7.0. The detection limit for the TiBTDS electrode was 5*10^<-7> M in the operational pH of 1.8-7.2. Potentiometric selectivity coefficient data obtained with the present electrodes proves that the ionophore based sensor possesses high selectivity for determination of zinc over most of the commonly encountered metals except Cu, Pb and Cd. The ion exchange type sensor, on the other hand, is characterized by having poor selectivity against other interferants. The rather unavoidable interference of Cu, Pb, and Cd on the Zn (II)-TiBTDS sensor is thought to arise because of the presence of soft sulfur donors in the ligand molecule. When the liquid membrane of the TiBTDS was incorporated in a surface plasmon resonance (SPR) Zn (II) sensor as the recognition element, a different selectivity pattern was obtained for the determination of zinc. This indicates that a reliable zinc sensor could be realized using TiBTDS.As a practical application of the Zn-TiBTDS, the change in zinc concentration in an electroplating solution was monitored for five hours. The observed concentration values agreed well with the values measured by AAS.It can be concluded that TiBTDS forms a good sensing material for detection of zinc ions in aqueous media.

开发了两种 Zn (II) 电位传感器，用于监测电镀液中的锌浓度。它们基于膜涂层碳棒电极，但膜传感组件的性质不同。一种包含离子交换类型，即。双[二(2-乙基己基)二硫代磷酸锌] (ZnDTP) 锌，而另一种则采用中性离子载体，即二硫化四异丁基秋兰姆 (TiBTDS) 作为传感材料。两种传感器对宽浓度范围内的水性锌 (II) 的检测均表现出良好的响应。 ZnDTP传感器提供6*10^-6M的检测限，工作pH范围为4.0-7.0。在1.8-7.2的操作pH下，TiBTDS电极的检测限为5×10^-7M。用本发明的电极获得的电位选择性系数数据证明，基于离子载体的传感器对于除Cu、Pb和Cd之外的大多数常见金属的锌测定具有高选择性。另一方面，离子交换型传感器的特点是对其他干扰物的选择性较差。 Cu、Pb 和 Cd 对 Zn (II)-TiBTDS 传感器的干扰被认为是由于配体分子中存在软硫供体而产生的。当TiBTDS的液膜作为识别元件结合到表面等离子共振（SPR）Zn（II）传感器中时，获得了不同的锌测定选择性模式。这表明使用TiBTDS可以实现可靠的锌传感器。作为Zn-TiBTDS的实际应用，对电镀溶液中锌浓度的变化进行了五个小时的监测。观察到的浓度值与AAS测量的值非常吻合。可以得出结论，TiBTDS是检测水介质中锌离子的良好传感材料。

项目成果

D.A.Chowdhury, T.Ogata, S.Kamata, K.Ohashi: "Samarium (III)-selective Electrode Using Neutral Bis (thiaalkylxanthato) alkanes" Anal. Chem.68. 366-370 (1996)

D.A.Chowdhury、T.Ogata、S.Kamata、K.Ohashi：“使用中性双（硫烷基黄原酸）烷烃的钐 (III) 选择性电极”。

T.Ogata 他: "Neutral 1,4-Bis (3-thiapentylxanthato) butane as sensing material for Sm (III) ion" Chemistry Letters. 1041-1042 (1995)

T. Ogata 等人：“中性 1,4-Bis (3-thiapentylxanthato) 丁烷作为 Sm (III) 离子的传感材料”，《化学快报》1041-1042 (1995)。