Core-shell structured Co<sub>3</sub>O<sub>4</sub>@PPy composite for electrochemical determination of terbutylhydroquinone

Zhang, Yuxi; Wang, Cunli; Zhao, Yuwu; Yu, Zhe; Yang, Fengchun; Zhang, Xin

doi:10.1039/d2ra05574k

Cited by 1 publication

(1 citation statement)

References 39 publications

(44 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So far, great advances have been got in the quantitative research and analysis of TBHQ. Common analysis methods for the determination of TBHQ include high-performance liquid chromatography, gas chromatography–mass spectrometry, electrochemical methods, fluorimetric detection, and capillary electrophoresis. − Among the above methods, the fluorescence analysis method is considered to be the most prospective technology due to its high sensitivity and selectivity . Moreover, fluorescence detection is simple, time-saving, low cost, and convenient; thus, fluorescent sensors could be potential candidates for monitoring TBHQ .…”

Section: Introductionmentioning

confidence: 99%

Novel Dual-Emission Carbonized Polymer Dot-Based Ratiometric Fluorescence Probe for the Sensitive Detection of Tertiary Butylhydroquinone

Xu,

Yang,

Liu

2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Tertiary butylhydroquinone (TBHQ), one of the most common antioxidants in many foods, has attracted widespread attention due to its potential risk to human health. In this work, an “on–off–on” ratiometric fluorescent probe was prepared using dual-emission carbonized polymer dots (d-CPDs), which can be used to detect TBHQ in edible oils. The ratiometric fluorescent sensing system consisted of blue fluorescent CPDs (b-CPDs) as the response signal and yellow fluorescent CPDs (y-CPDs) as the internal reference material. The blue fluorescence of b-CPDs was gradually quenched with increasing Fe3+ ion concentration, while the yellow fluorescence was essentially unaffected. Interestingly, TBHQ can restore the fluorescence intensity of b-CPDs. Meanwhile, the fluorescence mechanism of Fe3+ on b-CPDs was investigated by density functional theory, both after the addition of TBHQ, and CPDs were released and their fluorescence was restored due to the competitive reaction of TBHQ-Fe3+. Thus, the d-CPDs probe was able to detect Fe3+ accurately in an “on–off” manner and thus TBHQ in an “off–on” manner. At an optimal Fe3+ concentration, the ratiometric sensing system provided fine linearities for determining TBHQ in the range from 0.2 to 2 μM and an ingenious detection limit of 0.052 μM. The CPDs ratiometric fluorescent probe designed in this work may have a broader application in the rapid, susceptive, and low-cost determination of TBHQ in various foods.

show abstract

Section: Introductionmentioning

confidence: 99%

Novel Dual-Emission Carbonized Polymer Dot-Based Ratiometric Fluorescence Probe for the Sensitive Detection of Tertiary Butylhydroquinone

Xu,

Yang,

Liu

2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

Core-shell structured Co₃O₄@PPy composite for electrochemical determination of terbutylhydroquinone

Abstract: TBHQ is a significant synthetic antioxidant, but excessive use of TBHQ is harmful to human health.

Cited by 1 publication

References 39 publications

Novel Dual-Emission Carbonized Polymer Dot-Based Ratiometric Fluorescence Probe for the Sensitive Detection of Tertiary Butylhydroquinone

Novel Dual-Emission Carbonized Polymer Dot-Based Ratiometric Fluorescence Probe for the Sensitive Detection of Tertiary Butylhydroquinone

Contact Info

Product

Resources

About

Core-shell structured Co3O4@PPy composite for electrochemical determination of terbutylhydroquinone

Abstract: TBHQ is a significant synthetic antioxidant, but excessive use of TBHQ is harmful to human health.

Cited by 1 publication

References 39 publications

Novel Dual-Emission Carbonized Polymer Dot-Based Ratiometric Fluorescence Probe for the Sensitive Detection of Tertiary Butylhydroquinone

Novel Dual-Emission Carbonized Polymer Dot-Based Ratiometric Fluorescence Probe for the Sensitive Detection of Tertiary Butylhydroquinone

Contact Info

Product

Resources

About

Core-shell structured Co₃O₄@PPy composite for electrochemical determination of terbutylhydroquinone