Filter paper-based colorimetric analysis: An instrument-free strategy for semiquantitative naked-eye detection of food colorants

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2022-10-01 DOI:10.1016/j.foodchem.2022.133087

Shuangshou Wang , Lu Zhang , Qiwen Jin , Zhongqiu Xu , Jiayi Zhao , Yuwen Ding , Wenzhi Li , Peng Lin , Jing Gu , Qi Zhang , Yang Chen , Hongmei Chen , Tingxuan Yan

{"title":"Filter paper-based colorimetric analysis: An instrument-free strategy for semiquantitative naked-eye detection of food colorants","authors":"Shuangshou Wang , Lu Zhang , Qiwen Jin , Zhongqiu Xu , Jiayi Zhao , Yuwen Ding , Wenzhi Li , Peng Lin , Jing Gu , Qi Zhang , Yang Chen , Hongmei Chen , Tingxuan Yan","doi":"10.1016/j.foodchem.2022.133087","DOIUrl":null,"url":null,"abstract":"<div><p>A filter paper-based colorimetric strategy for instrument-independent visual detection of artificial food colorants (FCs) was developed in this study. Indicator papers were prepared via the one-step polycondensation of silane coupling agents onto glass microfiber filter papers, and colorimetric cards with a fine one-to-one correspondence between their colors and FCs concentrations were straightforward obtained by the extraction of FCs with indicator papers by virtue of electrostatic interaction and hydrophobic effect. Filter papers post-modified via such a simple way were proved to be of improved binding class selectivity and colorimetric sensitivity, allowing for in-situ colorimetric assay of FCs in an unprecedently wide range of applicable pH (1.0–12.0) with high reliability and fine versatility. Finally, the semiquantitative naked-eye determination of FCs (Allura red, brilliant blue and sunset yellow) in real-world drink samples was experimentally confirmed to be feasible by comparison with the findings of UV–vis absorption spectra, HPLC and mass spectra.</p></div>","PeriodicalId":318,"journal":{"name":"Food Chemistry","volume":"390 ","pages":"Article 133087"},"PeriodicalIF":9.8000,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Chemistry","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0308814622010494","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 12

Abstract

A filter paper-based colorimetric strategy for instrument-independent visual detection of artificial food colorants (FCs) was developed in this study. Indicator papers were prepared via the one-step polycondensation of silane coupling agents onto glass microfiber filter papers, and colorimetric cards with a fine one-to-one correspondence between their colors and FCs concentrations were straightforward obtained by the extraction of FCs with indicator papers by virtue of electrostatic interaction and hydrophobic effect. Filter papers post-modified via such a simple way were proved to be of improved binding class selectivity and colorimetric sensitivity, allowing for in-situ colorimetric assay of FCs in an unprecedently wide range of applicable pH (1.0–12.0) with high reliability and fine versatility. Finally, the semiquantitative naked-eye determination of FCs (Allura red, brilliant blue and sunset yellow) in real-world drink samples was experimentally confirmed to be feasible by comparison with the findings of UV–vis absorption spectra, HPLC and mass spectra.

查看原文本刊更多论文

基于滤纸的比色分析:一种无仪器的食品色素半定量裸眼检测策略

本研究开发了一种基于滤纸的人工食品色素(FCs)视觉检测方法。通过硅烷偶联剂在玻璃超细纤维滤纸上一步缩聚制备指示纸，利用静电相互作用和疏水效应，指示纸对fc进行萃取，直接得到颜色与fc浓度呈良好一一对应关系的比色卡。通过这种简单的方法修饰后的滤纸被证明具有提高的结合类选择性和比色灵敏度，允许在前所未有的广泛适用的pH范围(1.0-12.0)内进行fc的原位比色测定，具有高可靠性和良好的通用性。最后，通过与紫外-可见吸收光谱、高效液相色谱和质谱的对比，实验验证了半定量裸眼测定实际饮料样品中fc(诱惑红、艳蓝和日落黄)的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.