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A bismuth(III) PVC membrane ion selective electrode based on 5-(3,4,5-trimethoxyphenyl)-4-amino-1,2,4-triazole-3-thiol

Chinese chemical letters, 2015-09, Vol.26 (9), p.1147-1149 [Peer Reviewed Journal]

2015 Zhen-Ning Yan ;ISSN: 1001-8417 ;EISSN: 1878-5964 ;DOI: 10.1016/j.cclet.2015.04.036

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  • Title:
    A bismuth(III) PVC membrane ion selective electrode based on 5-(3,4,5-trimethoxyphenyl)-4-amino-1,2,4-triazole-3-thiol
  • Author: Wang, Hai-Xia ; Yan, Zhen-Ning ; Wen, Xiang-Li ; Kang, Yun-Xia ; Zhang, Shuang-Yan
  • Subjects: Bi3 ; Ion-selective electrode ; Ionophore ; Potentiometry ; PVC-membrane
  • Is Part Of: Chinese chemical letters, 2015-09, Vol.26 (9), p.1147-1149
  • Description: A new bismuth(III) PVC membrane ion selective electrode was prepared. The electrode showed a good selectivity and sensitivity, wide dynamic range, low detection limit, fast response time and can be applicable for analyzing real samples. The construction, performance characteristics and application of a new bismuth(III) PVC membrane electrode based on 5-(3,4,5-trimethoxyphenyl)-4-amino-1,2,4-triazole-3-thiol are reported in this paper. The designed sensor exhibited a Nernstian response for Bi3+ ion ranging from 5.0×10−7mol/L to 1.0×10−2mol/L with a slope of 19.8mV/decade. The operational pH range of the sensor is 3.0–6.0. The electrode shows a response time of 6s and can be used for at least five weeks without any considerable divergence in potentials. It exhibits very good selectivity relative to a wide variety of alkali, alkaline earth, transition and heavy metal ions. The proposed electrode could be used as an indicator electrode in potentiometric titration of Bi3+ ions with EDTA and in the determination of Bi3+ content in stomach medicine.
  • Publisher: Elsevier B.V
  • Language: English
  • Identifier: ISSN: 1001-8417
    EISSN: 1878-5964
    DOI: 10.1016/j.cclet.2015.04.036
  • Source: GFMER Free Medical Journals
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