首页> 外文期刊>International Journal of Electrochemical Science >Electroanalytical Studies on Fe(III) Ion-Selective Sensors Based on 2-methyl-6-(4-methylenecyclohex-2-en-1-yl)hept-2-en-4-one Ionophore.
【24h】

Electroanalytical Studies on Fe(III) Ion-Selective Sensors Based on 2-methyl-6-(4-methylenecyclohex-2-en-1-yl)hept-2-en-4-one Ionophore.

机译:基于2-甲基-6-(4-亚甲基环己-2-烯-1-基)庚-2-烯-4-一离子载体的Fe(III)离子选择性传感器的电分析研究。

获取原文
           

摘要

A new Fe(III) ion-selective screen-printed and carbon paste sensors based on 2-methyl-6-(4- methylenecyclohex-2-en-1-yl)hept-2-en-4-one (MMCHH) has been developed. The electrodes-7 -2 displayed a linear potential response over the wide concentration range from 4.310 to 110 and-7 -2 -1 -7 -7 -1 110 to 110 mol L with a detection limit of 4.310 and 110 mol L for modified carbonpaste (MCPEs; electrodes I and II) and screen-printed sensors (MSPEs; electrodes III and IV),respectively. The slopes of the calibration graphs are 18.50.9 and 19.30.5 for MCPEs withtricresylphosphate (TCP) (sensor I) and o-nitrophenyloctylether (o-NPOE) (sensor II) as plasticizers,respectively. Also, the MSPEs show good potentiometric slopes of 19.10.2 and 19.80.05 mV-1 decade with TCP (sensor III) and o-NPOE (sensor IV), respectively. The electrodes show stable andreproducible potential over a period of 55, 70, 130 and 150 days for sensors (I), (II), (III) and (IV),respectively. The sensors possessed some advantages such as short conditioning time, very fastresponse time (<12, 10, 7 and 5 s for sensors (I), (II), (III) and (IV), respectively) and especially gooddiscriminating ability towards Fe(III) ions over a wide variety of alkali, alkaline earth, transition, andheavy metal ions. The potential response of the proposed sensors was independent of the pH of the testsolution within the pH working range from 1.8 to 6.0, 1.5 to 6.0, 1.5 to 6.5 and 1.5 to 6.5 for sensors(I), (II), (III) and (IV), respectively. The optimized sensors were used successfully for direct andindirect determination of free iron species in some different spiked real water samples with satisfactoryresults. The results compared satisfactory with those obtained with atomic absorption spectrometry.
机译:一种新型的Fe(III)离子选择性丝网印刷和碳糊传感器,基于2-甲基-6-(4-亚甲基环己-2-烯-1-基)庚-2-烯-4-酮(MMCHH)具有已开发。电极-7 -2在4.310至110和-7 -2 -1 -7 -7 -1 110至110 mol L的宽浓度范围内均显示线性电位响应,其修饰下限为4.310和110 mol L碳糊(MCPE;电极I和II)和丝网印刷传感器(MSPE;电极III和IV)。对于具有三甲苯基磷酸酯(TCP)(传感器I)和邻硝基苯基辛基醚(o-NPOE)(传感器II)作为增塑剂的MCPE,校准曲线的斜率分别为18.50.9和19.30.5。同样,MSPE在TCP(传感器III)和o-NPOE(传感器IV)下分别显示出19.10.2和19.80.05 mV-1十倍电位的良好斜率。对于传感器(I),(II),(III)和(IV),电极分别在55、70、130和150天内显示出稳定且可重现的电位。这些传感器具有一些优点,例如调节时间短,响应时间非常快(传感器(I),(II),(III)和(IV)分别<12、10、7和5 s),并且对铁的识别能力特别好。 (III)各种碱金属,碱土金属,过渡金属和重金属离子上的离子。对于传感器(I),(II),(III)和(I),(I),(I),(I),(I),(I),(I),(I),(I),(I),(I),(I),(I),(I),(I),(I), (IV)。优化的传感器已成功用于直接和间接测定一些不同的加标真实水样中的游离铁种类,结果令人满意。结果与用原子吸收光谱法获得的结果相比令人满意。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号