Fabrication of Lead Ion Selective Electrodes (Pb-ISE) based on Poly Methyl-Methacrylate-Co-Butyl Acrylate (MB28) Thin Film Photo-polymers and Pencil Graphite Electrodes (PGEs)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-01-01 DOI:10.4152/pea.2022400405

A. Ariri, S. Alva, D. S. Khaerudini, A. A. Aziz

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引用次数: 1

Abstract

The purpose of this study was to fabricate lead ion selective electrode (Pb-ISE) sensors based on a 2:8 ratio of methyl-methacrylate-co-butyl acrylate thin film copolymers (MB28). These sensors were prepared by using a photo-polymerization technique on a pencil graphite electrode (PGE), with a poly-pyrrole-Cl (p-Py-Cl) thin film as a sensor transducer. During the Pb-ISE sensor fabrication process, the membrane composition optimization process has been carried out. The best sensor composition contained 1 mg potassium tetrakis (4-chlorophenyl) borate (KTpClPB) and 4.3 mg Pb ionophore IV. The fabricated Pb-ISE had a Nernstian number of 28.2 ± 0.5 mV/dec, a broad linear range from 10 -3 to 10 -10 M and a limit of detection (LOD) of (6.6 ± 1.6) x 10 -11 M, providing an excellent performance. In addition, the sensor showed a fairly good coefficient of effectiveness (CE) (Log K pota,b ) against K + (potassium), Na + (sodium), NH 4+ (ammonium), Mg 2+ (magnesium), Cu 2+ (copper) and Cd 2+ (cadmium) cations, which were -6.6 ± 0.2, -6.1 ± 0.2, -6.7 ± 0.2, -12.4 ± 0.3, -4.4 ± 0.2 and -6.1 ± 0.1, respectively. The Pb-ISE sensor worked best in the pH range from 3 to 8. The validation process has been carried out by comparing the measurements results of the artificial samples, at the concentrations from 25 to 100 ppm, with those of the real sample from Angke river water. The outcome was outstanding and comparable to that of the standard UV-Vis spectrophotometry measurement methods.

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基于聚甲基丙烯酸甲酯-丙烯酸丁酯(MB28)薄膜光聚合物和铅笔石墨电极的铅离子选择性电极(Pb-ISE)的制备

本研究的目的是基于2:8比例的甲基丙烯酸甲酯-丙烯酸正丁酯薄膜共聚物(MB28)制备铅离子选择电极(Pb-ISE)传感器。这些传感器采用光聚合技术在铅笔石墨电极(PGE)上制备，并以聚吡咯- cl (p-Py-Cl)薄膜作为传感器传感器。在pcb - ise传感器的制备过程中，进行了膜组成优化过程。最佳传感器组成为1 mg四氯苯基硼酸钾(KTpClPB)和4.3 mg铅离子载体IV。制备的Pb- ise的纳恩斯数为28.2±0.5 mV/dec，线性范围为10 -3 ~ 10 -10 M，检出限(LOD)为(6.6±1.6)× 10 -11 M，具有优异的性能。此外，该传感器对K +(钾)、Na +(钠)、nh4 +(铵)、Mg 2+(镁)、Cu 2+(铜)和Cd 2+(镉)阳离子的有效系数(CE) (Log K pota,b)分别为-6.6±0.2、-6.1±0.2、-6.7±0.2、-12.4±0.3、-4.4±0.2和-6.1±0.1。pcb - ise传感器在3 - 8的pH范围内工作效果最好。通过将25 - 100ppm浓度的人工样品的测量结果与昂科河水的实际样品的测量结果进行比较，验证了该过程。结果与标准紫外-可见分光光度法测量方法相当。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.