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Electroanalysis of Gallic and Ellagic Acids at a Boron‐doped Diamond Electrode Coupled with High‐performance Liquid Chromatography
Electroanalysis ( IF 2.7 ) Pub Date : 2020-06-09 , DOI: 10.1002/elan.202060021 Phyllis E. Hayes 1 , Jeremy D. Glennon 1 , John H. T. Luong 1
Electroanalysis ( IF 2.7 ) Pub Date : 2020-06-09 , DOI: 10.1002/elan.202060021 Phyllis E. Hayes 1 , Jeremy D. Glennon 1 , John H. T. Luong 1
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Electrochemistry of gallic acid (GA) and ellagic acid (EA) was investigated by cyclic voltammetry (CV) using a bare boron‐doped diamond (BDD) electrode. CVs indicate that the electro‐oxidation of both GA and EA are quasi‐reversible processes. High‐performance liquid chromatography (HPLC) coupled with a BDD electrode poised at+1.4 V offers the limit of detection (LOD, S/N=3) of 60 and 200 nM for GA and EA, respectively. The optimized method was then applied to the detection of both acids in Islay, Highland and Scotch whiskeys, with the highest concentrations found in a 14‐year‐old Highland whiskey.
中文翻译：
掺硼金刚石电极上高效液相色谱法对没食子酸和鞣花酸的电分析
没食子酸（GA）和鞣花酸（EA）的电化学是通过循环伏安法（CV）使用掺硼裸金刚石（BDD）电极进行研究的。CVs表明，GA和EA的电氧化都是准可逆过程。高效液相色谱（HPLC）加上BDD电极，电压保持在+1.4 V，GA和EA的检测限（LOD，S / N = 3）分别为60和200 nM。然后，将优化后的方法应用于艾莱岛，高地和苏格兰威士忌中两种酸的检测，其中14种高地威士忌中的酸含量最高。
更新日期：2020-06-09
中文翻译：
掺硼金刚石电极上高效液相色谱法对没食子酸和鞣花酸的电分析
没食子酸（GA）和鞣花酸（EA）的电化学是通过循环伏安法（CV）使用掺硼裸金刚石（BDD）电极进行研究的。CVs表明，GA和EA的电氧化都是准可逆过程。高效液相色谱（HPLC）加上BDD电极，电压保持在+1.4 V，GA和EA的检测限（LOD，S / N = 3）分别为60和200 nM。然后，将优化后的方法应用于艾莱岛，高地和苏格兰威士忌中两种酸的检测，其中14种高地威士忌中的酸含量最高。
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