An integrated measurement of six response performance indicators for lead ion-selective electrodes and application
A heavy metal ion-selective electrode (ISE) with highly multiple response performances, rather than a high single response performance, is needed urgently for in situ, real-time environmental monitoring. In this study, we present an integrated measurement of six response performance variables such as the response slope, selectivity, dynamical range, detection limit, response time, and lifetime. They are selected and used as the indicators of the quality assessment for Pb2+-ISEs. The measurement, named as electrode comprehensive quality index (IECQ), is a single number for a given ISE. The comprehensive qualities of 114 Pb2+-ISEs reported in the literature were evaluated through the index method. Twenty-one Pb2+-ISEs-based polymer membrane with top 3 IECQ values for seven different properties have been recommended by evaluating and screening of the electrodes. Five Pb2+-ISEs-based polymer membrane with the best single response performance were also provided. The recommended Pb2+-ISEs, along with the corresponding Pb2+-ISEs with the miniaturized configurations, will provide helpful guideline for the application of Pb2+-ISE with highly multiple response performances in real-time environmental monitoring.
KeywordsLead ion-selective electrode Comprehensive quality index Overall quality evaluation Screening Environmental monitoring
This work was partially supported by the Summit of the Six Top Talents Program in Jiangsu Province (2012-SWYY-030 and 2017-SWYY-081) and the foundation of Jiangsu Province educational committee (16KJB180031) (L.Sun).
- Braungardt, C. B., Achterberg, E. P., Axelsson, B., Buffle, J., Graziottin, F., Howell, K. A., Illuminati, S., Scarponi, G., Tappin, A. D., Tercier-Waeber, M.-L., & Turner, D. (2009). Analysis of dissolved metal fractions in coastal waters: an inter-comparison of five voltammetric in situ profiling (VIP) systems. Marine Chemistry, 114, 47–55.CrossRefGoogle Scholar
- Ceresa, A., Bakker, E., Hattendorf, B., Gunther, D., & Pretsch, E. (2001). Potentiometric polymeric membrane electrodes for measurement of environmental samples at trace levels: new requirements for selectivities and measuring protocols, and comparison with ICPMS. Analytical Chemistry, 73, 343–351.CrossRefGoogle Scholar
- Ellison, S. L. R., & Williams, A. (2012). EURACHEM/CITAC Guide:Quantifying uncertainty in analytical measurement (3rd ed.pp. 26–27) QUAM:2012.P1.(ISBN 978–0–948926-30-3).Google Scholar
- Inamuddin, Rangreez, T. A., Naushad, M., & Al-Ahmad, A. (2015). Synthesis and characterisation of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) Zr(IV) monothiophosphate composite cation exchanger: analytical application as lead ion selective membrane electrode. International Journal of Environmental Analytical Chemistry, 95, 312–323Google Scholar
- Sun, X. (2003). A new evaluation on comprehensive quality of ion-selective electrode and its application in development of doxycycline-selective PVC membrane electrode. Journal of Instrumental Analysis, 22, 1–4 (in Chinese).Google Scholar
- Sunda, W., & Guillard, R. R. L. (1976). The relationship between cupric ion activity and the toxicity of copper to phytoplankton. Journal of Marine Research, 34, 511–529.Google Scholar
- Tyagi, S., Agarwal, H., & Ikram, S. (2009). Application of calixarene ionophores in PVC-based ion selective electrodes for heavy metal detection. The IUP Journal of Chemistry, II, 68.Google Scholar