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Rapid Nanomolar Detection of Guaiacol from its Precursors Using a Core‐shell Reversed‐phase Column Coupled with a Boron‐doped Diamond Electrode
Electroanalysis ( IF 2.7 ) Pub Date : 2020-10-23 , DOI: 10.1002/elan.202060434
Phyllis Hayes 1 , Alyah Buzid 2 , John Luong 1 , Jeremy Glennon 3
Affiliation  

The electrooxidation mechanisms of guaiacol (2‐methoxyphenol), a food and beverage spoilage metabolite, and its precursors; vanillic acid (VA), vanillin, and ferulic acid (FA) were investigated by cyclic voltammetry (CV) with a boron‐doped diamond (BDD) electrode. Reversed‐phase liquid chromatography (RPLC) together with a BDD electrode poised at +1.6 V vs. Pd/H2, was optimized for their sensitive detection. The separation was achieved in 60 s with a core‐shell column (HALO C18). The detection limits of these analytes ranged from 10–30 nM. The method was applicable for the analysis of guaiacol and its precursors from a popular commercial drink.

中文翻译:

使用核壳反相柱结合掺硼金刚石电极快速从前体中对愈创木酚进行纳摩尔摩尔检测

食品和饮料变质代谢产物愈创木酚(2-甲氧基苯酚)及其前体的电氧化机理;用硼掺杂金刚石(BDD)电极通过循环伏安法(CV)研究了香草酸(VA),香草醛和阿魏酸(FA)。反相液相色谱(RPLC)以及BDD电极保持在+1.6 V vs. Pd / H 2的条件下,针对其灵敏检测进行了优化。使用核壳色谱柱(HALO C 18)可以在60 s内完成分离。这些分析物的检出限为10–30 nM。该方法可用于分析流行的商用饮料中的愈创木酚及其前体。
更新日期:2020-10-23
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