Potentiometric Determination of Total Polyphenols in Green Tea Based on Complexation-Reaction-Induced Response
文献类型：期刊论文
| 作者 | Kou, Lijuan1,2,3; Liang, Rongning1,2 ; Qin, Wei1,2
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| 刊名 | INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
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| 出版日期 | 2014-06-01 |
| 卷号 | 9期号:6页码:3190-3198 |
| 关键词 | Cu2+-selective polymer membrane electrode complexation reaction polyphenols determination green tea |
| ISSN号 | 1452-3981 |
| 产权排序 | [Kou, Lijuan; Liang, Rongning; Qin, Wei] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China; [Kou, Lijuan; Liang, Rongning; Qin, Wei] YICCAS, Shandong Prov Key Lab Coastal Environm Proc, Yantai, Shandong, Peoples R China; [Kou, Lijuan] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 通讯作者 | Liang, RN (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China. rnliang@yic.ac.cn |
| 中文摘要 | A novel potentiometric approach for the determination of total tea polyphenols is described in this paper. The proposed approach is based on the complexation reactions of polyphenols with metal ions (e.g., Cu2+) and the depletion of copper ions is monitored by a solid-contact Cu2+-selective polymer membrane electrode. The potential change induced by the complexation reaction can be used for reliable detection of polyphenols. By using epigallocatechin gallate (EGCG) as a model of tea polyphenols, the potentiometric sensor shows a linear response over the concentration range of 0.01 g/L to 0.1 g/L with a low detection limit of 3.2 mg/L. It has also been found that the detection system is not susceptible to interference by other organic substances associated with polyphenols analysis such as amino acid, organic acid, caffeine and vitamin C at their usual levels in green tea. The practical application of the proposed system has been successfully applied to the determination of polyphenols in real green tea samples. |
| 英文摘要 | A novel potentiometric approach for the determination of total tea polyphenols is described in this paper. The proposed approach is based on the complexation reactions of polyphenols with metal ions (e.g., Cu2+) and the depletion of copper ions is monitored by a solid-contact Cu2+-selective polymer membrane electrode. The potential change induced by the complexation reaction can be used for reliable detection of polyphenols. By using epigallocatechin gallate (EGCG) as a model of tea polyphenols, the potentiometric sensor shows a linear response over the concentration range of 0.01 g/L to 0.1 g/L with a low detection limit of 3.2 mg/L. It has also been found that the detection system is not susceptible to interference by other organic substances associated with polyphenols analysis such as amino acid, organic acid, caffeine and vitamin C at their usual levels in green tea. The practical application of the proposed system has been successfully applied to the determination of polyphenols in real green tea samples. |
| 学科主题 | Electrochemistry |
| 研究领域[WOS] | Electrochemistry |
| 关键词[WOS] | ION-SELECTIVE ELECTRODES ; SOLID-CONTACT ; LIQUID-CHROMATOGRAPHY ; IMPRINTED POLYMER ; DETECTION LIMIT ; MEMBRANE ; SENSOR ; LEVEL ; CATECHINS ; PHENOLS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334493300040 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8743]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China 2.YICCAS, Shandong Prov Key Lab Coastal Environm Proc, Yantai, Shandong, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kou, Lijuan,Liang, Rongning,Qin, Wei. Potentiometric Determination of Total Polyphenols in Green Tea Based on Complexation-Reaction-Induced Response[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2014,9(6):3190-3198. |
| APA | Kou, Lijuan,Liang, Rongning,&Qin, Wei.(2014).Potentiometric Determination of Total Polyphenols in Green Tea Based on Complexation-Reaction-Induced Response.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,9(6),3190-3198. |
| MLA | Kou, Lijuan,et al."Potentiometric Determination of Total Polyphenols in Green Tea Based on Complexation-Reaction-Induced Response".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 9.6(2014):3190-3198. |
入库方式： OAI收割
来源：烟台海岸带研究所
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