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Determination of bergenin based on the electrochemiluminescence quenching of tris(2,2'-bipyridine)-ruthenium(II).
Luminescence. 2015 Dec; 30(8):1269-73.L

Abstract

Quenching effects of bergenin, based on the electrochemiluminescence (ECL) of the tris(2,2'-bipyridyl)-ruthenium(II) (Ru(bpy)3(2+))/tri-n-propylamine (TPrA) system in aqueous solution, is been described. The quenching behavior can be observed with a 100-fold excess of bergenin over Ru(bpy)3(2+). In the presence of 0.1 m TPrA, the Stern-Volmer constant (KSV) of the ECL quenching is as high as 1.16 × 10(4) M(-1) for bergenin. The logarithmic plot of the inhibited ECL versus logarithmic plot of the concentration of bergenin was linear over the range 3.0 × 10(-6)-1.0 × 10(-4) mol/L. The corresponding limit of detection was 6.0 × 10(-7) mol/L for bergenin (S/N = 3). In the mechanism of quenching it is believed that the competition of the active free radicals between Ru(bpy)3(2+)/TPrA and bergenin was the key factor for the ECL inhibition of the system. Photoluminescence, cyclic voltammetry, coupled with bulk electrolysis, supports the supposition mechanism of the Ru(bpy)3(2+)/TPrA-bergenin system.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zhu Y
College of Chemistry and Material Science, Anhui Normal University, Wuhu, China.
Zou L
College of Chemistry and Material Science, Anhui Normal University, Wuhu, China.
Dong Q
College of Chemistry and Material Science, Anhui Normal University, Wuhu, China.
Jiang D
College of Chemistry and Material Science, Anhui Normal University, Wuhu, China.

MeSH

2,2'-DipyridylBenzopyransCoordination ComplexesLuminescenceLuminescent MeasurementsPropylamines

Pub Type(s)

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

Language

eng

PubMed ID

25808319

Citation

Zhu, Yinggui, et al. "Determination of Bergenin Based On the Electrochemiluminescence Quenching of Tris(2,2'-bipyridine)-ruthenium(II)." Luminescence : the Journal of Biological and Chemical Luminescence, vol. 30, no. 8, 2015, pp. 1269-73.
Zhu Y, Zou L, Dong Q, et al. Determination of bergenin based on the electrochemiluminescence quenching of tris(2,2'-bipyridine)-ruthenium(II). Luminescence. 2015;30(8):1269-73.
Zhu, Y., Zou, L., Dong, Q., & Jiang, D. (2015). Determination of bergenin based on the electrochemiluminescence quenching of tris(2,2'-bipyridine)-ruthenium(II). Luminescence : the Journal of Biological and Chemical Luminescence, 30(8), 1269-73. https://doi.org/10.1002/bio.2891
Zhu Y, et al. Determination of Bergenin Based On the Electrochemiluminescence Quenching of Tris(2,2'-bipyridine)-ruthenium(II). Luminescence. 2015;30(8):1269-73. PubMed PMID: 25808319.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination of bergenin based on the electrochemiluminescence quenching of tris(2,2'-bipyridine)-ruthenium(II). AU - Zhu,Yinggui, AU - Zou,Lili, AU - Dong,Qin, AU - Jiang,Derong, Y1 - 2015/03/25/ PY - 2014/10/29/received PY - 2015/01/18/revised PY - 2015/01/28/accepted PY - 2015/3/27/entrez PY - 2015/3/27/pubmed PY - 2016/10/21/medline KW - bergenin KW - electrochemiluminescence (ECL) KW - quenching SP - 1269 EP - 73 JF - Luminescence : the journal of biological and chemical luminescence JO - Luminescence VL - 30 IS - 8 N2 - Quenching effects of bergenin, based on the electrochemiluminescence (ECL) of the tris(2,2'-bipyridyl)-ruthenium(II) (Ru(bpy)3(2+))/tri-n-propylamine (TPrA) system in aqueous solution, is been described. The quenching behavior can be observed with a 100-fold excess of bergenin over Ru(bpy)3(2+). In the presence of 0.1 m TPrA, the Stern-Volmer constant (KSV) of the ECL quenching is as high as 1.16 × 10(4) M(-1) for bergenin. The logarithmic plot of the inhibited ECL versus logarithmic plot of the concentration of bergenin was linear over the range 3.0 × 10(-6)-1.0 × 10(-4) mol/L. The corresponding limit of detection was 6.0 × 10(-7) mol/L for bergenin (S/N = 3). In the mechanism of quenching it is believed that the competition of the active free radicals between Ru(bpy)3(2+)/TPrA and bergenin was the key factor for the ECL inhibition of the system. Photoluminescence, cyclic voltammetry, coupled with bulk electrolysis, supports the supposition mechanism of the Ru(bpy)3(2+)/TPrA-bergenin system. SN - 1522-7243 UR - https://www.unboundmedicine.com/medline/citation/25808319/Determination_of_bergenin_based_on_the_electrochemiluminescence_quenching_of_tris_22'_bipyridine__ruthenium_II__ DB - PRIME DP - Unbound Medicine ER -