Fast and Quantitative Analysis of Ediphenphos Residue in Rice Using Surface‐Enhanced Raman Spectroscopy

Weng, Shizhuang; Wang, Fang; Dong, Ronglu; Qiu, Mengqing; Zhao, Jing; Huang, Liusheng; Zhang, Dongyan

doi:10.1111/1750-3841.14103

Cited by 20 publications

(5 citation statements)

References 31 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…24−29 There are several research articles describing quantitative analysis of food products using Raman. 26,30−32 trace contaminants in milk, and Weng et al 31 reported quantitative analysis of ediphenphos residue in rice. Another group 24,25,33 reported the quantitation of TiO 2 in table sugar using Raman spectroscopy and also developed the flavonoidassisted microextraction method for TiO 2 detection.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Due to difficulties of ionizing TiO 2 in ICP-MS analysis, researchers developed new approaches for TiO 2 quantitation. − One of the more recently developed methods for quantitation of food additives or toxic materials in food involves Raman spectroscopic methods. − There are several research articles describing quantitative analysis of food products using Raman. ,− Tan et al described a single-drop Raman imaging technique for the analysis of trace contaminants in milk, and Weng et al reported quantitative analysis of ediphenphos residue in rice. Another group ,, reported the quantitation of TiO 2 in table sugar using Raman spectroscopy and also developed the flavonoid-assisted microextraction method for TiO 2 detection.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Titanium Dioxide in Food Products: Quantitative Analysis Using ICP-MS and Raman Spectroscopy

Lim

Bae

Fong

2018

J. Agric. Food Chem.

View full text Add to dashboard Cite

Titanium dioxide (TiO2) is commonly used as a color additive in food products. In this study, a total of 11 food products, such as a coffee cream, yogurt snack, hard candy, and chewy candy, that are widely consumed by adults or children were investigated. For characterization of particle size, size distribution, crystallinity, and concentration of TiO2, particles were first extracted using an acid digestion method from food, and various analytical techniques were applied. All products investigated in this study contained nanosized TiO2 particles (21.3–53.7%) in the anatase phase. The particle size of TiO2 was in the range of 26.9–463.2 nm. The concentration of TiO2 in the products ranged from 0.015% (150 ppm) to 0.462% (4620 ppm). These values obtained using inductively coupled plasma–mass spectrometry (ICP-MS) were considered as the reference and were compared with Raman results to evaluate the feasibility of using the Raman method to quantitate TiO2 in food products. The Raman method developed in this study proved to effectively analyze anatase TiO2 in food products at levels of several hundred parts per million or greater. Limitations of using the Raman method as a quick screening tool for determination of TiO2 are also discussed.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Titanium Dioxide in Food Products: Quantitative Analysis Using ICP-MS and Raman Spectroscopy

Lim

Bae

Fong

2018

J. Agric. Food Chem.

View full text Add to dashboard Cite

show abstract

“…Accordingly, SERS with mPEG-SH-coated GNRs, PLSR and PCA can detect pirimiphos-methyl residues in wheat with high sensitivity and good repeatability when coupled with the presented extraction method. Method detection limit (MDL) and reliable quantitation limit (RQL) were used to assess the limit-of-detection of the presented methodology [30]. MDL of pirimiphos-methyl residue in wheat was 0.0442 mg/L, and RQL was 0.1768 mg/L.…”

Section: Resultsmentioning

confidence: 99%

Detection of Pirimiphos-Methyl in Wheat Using Surface-Enhanced Raman Spectroscopy and Chemometric Methods

Weng

Dong

et al. 2019

Molecules

Self Cite

View full text Add to dashboard Cite

Pesticide residue detection is a hot issue in the quality and safety of agricultural grains. A novel method for accurate detection of pirimiphos-methyl residues in wheat was developed using surface-enhanced Raman spectroscopy (SERS) and chemometric methods. A simple pretreatment method was conducted to extract pirimiphos-methyl residue from wheat samples, and highly effective gold nanorods were prepared for SERS measurement. Raman peaks assignment was calculated using density functional theory. The Raman signal of pirimiphos-methyl can be detected when the concentrations of residue in wheat extraction solution and contaminated wheat is as low as 0.2 mg/L and 0.25 mg/L, respectively. Quantification of pirimiphos-methyl was performed by applying regression models developed by partial least squares regression, support vector machine regression and random forest with principal component analysis using different preprocessed methods. As for the contaminated wheat samples, the relative deviation between gas chromatography-mass spectrometry value and predicted value is in the range of 0.10%–6.63%, and predicted recovery is 94.12%–106.63%, ranging from 23.93 mg/L to 0.25 mg/L. Results demonstrated that the proposed SERS method is an effective and efficient analytical tool for detecting pirimiphos-methyl in wheat with high accuracy and excellent sensitivity.

show abstract

“…Surface‐enhanced Raman scattering (SERS) is a sensitive and rapid detection method that shows great advantages in the ultrasensitive detection of trace chemicals (Weng et al., 2018; Yan et al., 2022; Zhang, Xue, et al., 2022; Zhu et al., 2022). For SERS detection, the electromagnetic enhancement has been reported as the main mechanism contributing to the SERS enhancement effect.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a metal organic framework (MOF)‐modified Au nanoparticle array for sensitive and stable SERS sensing of paraquat in cereals

Chen

Zhu²,

Yang

et al. 2023

Journal of Food Science

View full text Add to dashboard Cite

A high‐performance Au@MIL‐101/PMMA/DT surface‐enhanced Raman scattering (SERS) substrate was fabricated for sensitive and stable detection of paraquat by self‐assembling metal organic framework–modified Au nanoparticles (Au@MIL‐101) on a poly(methyl methacrylate) (PMMA) film and then immobilizing the formed substrate onto a duct tape (DT). The highly closely packed Au@MIL‐101 array provided intensive hotspots for SERS sensing. The MIL‐101 layer modified on the surface of Au nanoparticles could absorb paraquat to the electromagnetic enhancement area of Au nanoparticles. The DT on the bottom made the substrate smoother, which is beneficial for achieving a more stable detection performance. As a result, the constructed substrate exhibited outstanding uniformity with relative standard deviations of 9.47% and storage stability for 2 months. For detecting paraquat, the substrate showed a low detection limit of 7.1 × 10−9 M (1.83 µg/kg) and wide linear range from 10−8 to 10−2 M. Furthermore, the substrate showed good detection performance in real cereal samples with desirable recovery rates from 91.57% to 102.32%.

show abstract

Fast and Quantitative Analysis of Ediphenphos Residue in Rice Using Surface‐Enhanced Raman Spectroscopy

Cited by 20 publications

References 31 publications

Titanium Dioxide in Food Products: Quantitative Analysis Using ICP-MS and Raman Spectroscopy

Titanium Dioxide in Food Products: Quantitative Analysis Using ICP-MS and Raman Spectroscopy

Detection of Pirimiphos-Methyl in Wheat Using Surface-Enhanced Raman Spectroscopy and Chemometric Methods

Fabrication of a metal organic framework (MOF)‐modified Au nanoparticle array for sensitive and stable SERS sensing of paraquat in cereals

Contact Info

Product

Resources

About