4.7 Article

Semiquantitative naked-eye detection of synthetic food colorants using highly-branched pipette tip as an all-in-one device

Journal

ANALYTICA CHIMICA ACTA
Volume 1211, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.aca.2022.339901

Keywords

Synthetic food colorants; Solid phase extraction; Naked-eye detection; Branching modification; Pipette tip

Funding

  1. National Natural Science Foundation of China [21904003]
  2. Natural Science Foundation of Anhui Province [1908085QB66, 1908085MF197, 2108085QB85]
  3. Key Project of Research and Development of Bengbu [BYLK201809]
  4. Student Research Training Program of Anhui University of Technology [202110360034, S202110360202]

Ask authors/readers for more resources

This study developed highly branched pipette tips for the extraction and visual detection of synthetic food colorants. The method demonstrated high recovery and semiquantitative naked-eye detection, and did not require specialized instruments.
The existing strategies for the determination of synthetic food colorants (FCs) in manufactured foods are highly relied on specialized instruments and skilled personnel which are limited by the high technical threshold and instrumentation cost. Herein, highly branched pipette tips (PTs) were fabricated as a robust all-in-one device for high-performance extraction and visual detection of FCs via handy aspiration and dispensing procedures of pipette controller. The density of extraction groups and inner specific surface area of PTs greatly increased after facile physical coating and subsequent layer-by-layer branching reactions, and the maximum increment in binding capacity of PTs was exceeded 300 times at 8-10 iterations of branching layers, enabling the PTs to be colored just by short-time extraction of FCs and to achieve the instrument-independent visual detection of FCs by virtue of their outstanding PT-SPE performance. As a proof-of-concept, the in-situ PT-based solid phase extraction (PT-SPE) with high recoveries (from 91.73 +/- 4.76% to 99.90 +/- 4.14%) and semiquantitative naked-eye detection of FCs (Allura red and brilliant blue) in real beverages were experimentally demonstrated to be highly feasible by comparison with classical techniques like spectrophotometry, HPLC, and mass spectrometry.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available