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首页> 外文期刊>International Journal of Electrochemical Science >Fabrication of a New Carbon Paste Electrode Based on 5,11,17,23-tetra-tert-butyl-25,27-bis(pyren-1-yl-methylimido- propoxy)-26,28-dihydroxy-calix[4]arene for Potentiometric Perchlorate Determination
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Fabrication of a New Carbon Paste Electrode Based on 5,11,17,23-tetra-tert-butyl-25,27-bis(pyren-1-yl-methylimido- propoxy)-26,28-dihydroxy-calix[4]arene for Potentiometric Perchlorate Determination

机译：基于5,11,17,23-四叔丁基-25,27-双（吡啶-1-基-甲基亚氨基-丙氧基）-26,28-二羟基杯的新型碳糊电极的制备[4]电位测定高氯酸盐的芳烃

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摘要

A new perchlorate-selective carbon paste electrode based on a calix[4]arene derivative was prepared and evaluated in terms of construction, performance, and applications. The optimum carbon paste combination was specified as 30.0% ionophore, 30.0% graphite powder, and 40.0% 2-nitrophenyloctyl ether as binder. The proposed electrode showed a near-Nernstian slope of 56.3±0.6 mV/pClO4 in the concentration range of 1.0×10?6 ? 1.0×10?1 M over the wide pH range. It has relatively short response time (6-8 s) and a long lifetime (at least 18 months). The selectivity sequence of the electrode was given according to the coefficients calculated by SSM. Furthermore, perchlorate ions in tap water, river water and human urine samples were successfully determined by direct potentiometry and the resulting mean recoveries were found in the order of 99.4%, 99.8% and 99.1%. Therefore, the proposed perchlorate-selective carbon paste electrode could be an alternative indicator electrode for potentiometric perchlorate analysis.
机译：制备了一种新的基于杯[4]芳烃衍生物的高氯酸盐选择性碳糊电极，并在结构，性能和应用方面进行了评估。最佳的碳糊组合指定为30.0％的离子载体，30.0％的石墨粉和40.0％的2-硝基苯基辛基醚作为粘合剂。所建议的电极在1.0×10 26≤m2的浓度范围内显示出近Nernstian斜率56.3±0.6mV / pClO 4。在宽pH范围内为1.0×10？1M。它的响应时间相对较短（6-8 s），使用寿命长（至少18个月）。根据SSM计算的系数给出电极的选择性顺序。此外，通过直接电位法成功测定了自来水，河水和人类尿液样品中的高氯酸根离子，得出的平均回收率约为99.4％，99.8％和99.1％。因此，建议的高氯酸盐选择性碳糊电极可以作为电位计高氯酸盐分析的替代指示电极。

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