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Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode
Zhang L(张丽); Wang CZ(王聪芝); Wang L(王琳); Zhao YL(赵宇亮); Chai ZF(柴之芳); Shi WQ(石伟群); Zhang, L; Wang, CZ; Tang, HB; Wang, L; Liu, YS; Zhao, YL; Chai, ZF; Shi, WQ
2015
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
EISSN1873-3859
Volume174Pages:925-932
Corresponding Author石伟群
SubtypeArticle
AbstractIn this work, the tin-bismuth alloy electrode (SnBiE) was used for U(VI) concentration determination for the first time. Compared to the conventional solid electrode (glassy carbon electrode and bismuth bulk electrode), the SnBiE possesses a higher hydrogen overpotential, which indicates that the tin-bismuth alloy can considerably extend the application of potentially available electrode detection systems. Combining with electrochemical behavior analysis and spectrometric measurements as well as theoretical calculation methods, the geometric structures of uranium-cupferron (N-nitrosophenylhydroxylamine) complexes have been revealed and a more detailed electrode mechanism has been proposed. The electroanalysis results show that the optimal sensitivity could be obtained by using diphenylguanidine as the auxiliary reagent. The calibration plot for U(VI) quantification was linear from 0.5 nM to 30 nM with a correlation coefficient of 0.999. In the meanwhile, a detection limit of 0.24 nM was obtained in connection with an accumulation time of 30 s, which is comparable with that of mercury analogues. The practical applications of SnBiE have been tentatively performed for the determination of UO22+ in real water samples and the results were well consistent with those by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). A very simple, convenient and cheap approach was established for the determination of UO22+ in natural water samples containing surfactants without the otherwise necessity of sample pretreatment, which drastically reduce the analysis time. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordTin-bismuth alloy electrode Adsorptive cathodic stripping voltammetry Uranium Water sample
Subject AreaElectrochemistry
DOI10.1016/j.electacta.2015.06.087
Indexed BySCI ; CA
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000359873400117
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228654
Collection院士
多学科研究中心
Recommended Citation
GB/T 7714
Zhang L,Wang CZ,Wang L,et al. Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode[J]. ELECTROCHIMICA ACTA,2015,174:925-932.
APA 张丽.,王聪芝.,王琳.,赵宇亮.,柴之芳.,...&Shi, WQ.(2015).Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode.ELECTROCHIMICA ACTA,174,925-932.
MLA 张丽,et al."Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode".ELECTROCHIMICA ACTA 174(2015):925-932.
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