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High-sensitivity determination of lead and cadmium based on the Nafion-graphene composite film.
Anal Chim Acta. 2009 Sep 07; 649(2):196-201.AC

Abstract

Graphene nanosheets, dispersed in Nafion (Nafion-G) solution, were used in combination with in situ plated bismuth film electrode for fabricating the enhanced electrochemical sensing platform to determine the lead (Pb2+) and cadmium (Cd2+) by differential pulse anodic stripping voltammetry (DPASV). The electrochemical properties of the composite film modified glassy carbon electrode were investigated. It is found that the prepared Nafion-G composite film not only exhibited improved sensitivity for the metal ion detections, but also alleviated the interferences due to the synergistic effect of graphene nanosheets and Nafion. The linear calibration curves ranged from 0.5 microg L(-1) to 50 microg L(-1) for Pb2+ and 1.5 microg L(-1) to 30 microg L(-1) for Cd2+, respectively. The detection limits (S/N=3) were estimated to be around 0.02 microg L(-1) for Pb2+ and Cd2+. The practical application of the proposed method was verified in the water sample determination.

Authors+Show Affiliations

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19699394

Citation

Li, Jing, et al. "High-sensitivity Determination of Lead and Cadmium Based On the Nafion-graphene Composite Film." Analytica Chimica Acta, vol. 649, no. 2, 2009, pp. 196-201.
Li J, Guo S, Zhai Y, et al. High-sensitivity determination of lead and cadmium based on the Nafion-graphene composite film. Anal Chim Acta. 2009;649(2):196-201.
Li, J., Guo, S., Zhai, Y., & Wang, E. (2009). High-sensitivity determination of lead and cadmium based on the Nafion-graphene composite film. Analytica Chimica Acta, 649(2), 196-201. https://doi.org/10.1016/j.aca.2009.07.030
Li J, et al. High-sensitivity Determination of Lead and Cadmium Based On the Nafion-graphene Composite Film. Anal Chim Acta. 2009 Sep 7;649(2):196-201. PubMed PMID: 19699394.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-sensitivity determination of lead and cadmium based on the Nafion-graphene composite film. AU - Li,Jing, AU - Guo,Shaojun, AU - Zhai,Yueming, AU - Wang,Erkang, Y1 - 2009/07/19/ PY - 2009/05/19/received PY - 2009/07/12/revised PY - 2009/07/13/accepted PY - 2009/8/25/entrez PY - 2009/8/25/pubmed PY - 2009/12/30/medline SP - 196 EP - 201 JF - Analytica chimica acta JO - Anal Chim Acta VL - 649 IS - 2 N2 - Graphene nanosheets, dispersed in Nafion (Nafion-G) solution, were used in combination with in situ plated bismuth film electrode for fabricating the enhanced electrochemical sensing platform to determine the lead (Pb2+) and cadmium (Cd2+) by differential pulse anodic stripping voltammetry (DPASV). The electrochemical properties of the composite film modified glassy carbon electrode were investigated. It is found that the prepared Nafion-G composite film not only exhibited improved sensitivity for the metal ion detections, but also alleviated the interferences due to the synergistic effect of graphene nanosheets and Nafion. The linear calibration curves ranged from 0.5 microg L(-1) to 50 microg L(-1) for Pb2+ and 1.5 microg L(-1) to 30 microg L(-1) for Cd2+, respectively. The detection limits (S/N=3) were estimated to be around 0.02 microg L(-1) for Pb2+ and Cd2+. The practical application of the proposed method was verified in the water sample determination. SN - 1873-4324 UR - https://www.unboundmedicine.com/medline/citation/19699394/High_sensitivity_determination_of_lead_and_cadmium_based_on_the_Nafion_graphene_composite_film_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-2670(09)00961-1 DB - PRIME DP - Unbound Medicine ER -