A Versatile SERS Sensor for Multiple Determinations of Polycyclic Aromatic Hydrocarbons and Its Application Potential in Analysis of Fried Foods
Joint Authors
Han, Caiqin
Wang, Shi
Cheng, Jie
Xie, Jianchun
Source
International Journal of Analytical Chemistry
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-23
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Polycyclic aromatic hydrocarbons (PAHs), due to their high hydrophobicity, have low affinity for metallic SERS-active surfaces, which leads to their low SERS detection sensitivity.
Various functional groups have been used to improve the affinity of metallic substrates towards the target PAHs.
However, a large portion of the signals generated from the “first-layer effect” of the functionalized substrates may complicate the spectrum, leading to a distortion in the assignment of the intrinsic SERS fingerprints of PAHs.
In this study, a SERS sensor composed of Au nanoparticles (AuNPs) and reoxidized graphene oxide (rGO) was developed for the simultaneous determination of 16 EPA priority PAHs.
The synthesis of the rGO/AuNP substrate can be realized without a complicated modification process.
All the 16 PAHs could be identified based on their characteristic peaks in the presence of the composited substrate, with estimated LOD as low as 0.2–2 ng·mL−1.
The binary linear regression was optimized as the fitting model for all PAHs except for benzo(k)fluoranthene, with the linear correlation coefficient ranging from 0.9889 to 0.9997.
Based on the developed SERS substrates and sample pretreatment, the characteristic SERS peaks of four PAHs in Chinese traditional fried food (youtiao) were identified without any background interference.
The whole detection process only takes approximately 15 minutes.
The results demonstrate the potential of the multicomponent on-field detection of PAHs.
American Psychological Association (APA)
Wang, Shi& Cheng, Jie& Han, Caiqin& Xie, Jianchun. 2020. A Versatile SERS Sensor for Multiple Determinations of Polycyclic Aromatic Hydrocarbons and Its Application Potential in Analysis of Fried Foods. International Journal of Analytical Chemistry،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1167629
Modern Language Association (MLA)
Wang, Shi…[et al.]. A Versatile SERS Sensor for Multiple Determinations of Polycyclic Aromatic Hydrocarbons and Its Application Potential in Analysis of Fried Foods. International Journal of Analytical Chemistry No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1167629
American Medical Association (AMA)
Wang, Shi& Cheng, Jie& Han, Caiqin& Xie, Jianchun. A Versatile SERS Sensor for Multiple Determinations of Polycyclic Aromatic Hydrocarbons and Its Application Potential in Analysis of Fried Foods. International Journal of Analytical Chemistry. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1167629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1167629