Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS)
The residues of deltamethrin (DM) and carbofuran (CBF) in soil is becoming an intractable problem causing soil hardening and environmental pollution. This paper reports a very simple method via improved reduction of chloroauric acid by the trisodium citrate method for fabricating gold nanoparticles...
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doaj-cd0e826f87e3449a9412238f56be32572020-11-24T21:44:27ZengMDPI AGInternational Journal of Molecular Sciences1422-00672019-04-01207173110.3390/ijms20071731ijms20071731Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS)Yong He0Shupei Xiao1Tao Dong2Pengcheng Nie3College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, ChinaThe residues of deltamethrin (DM) and carbofuran (CBF) in soil is becoming an intractable problem causing soil hardening and environmental pollution. This paper reports a very simple method via improved reduction of chloroauric acid by the trisodium citrate method for fabricating gold nanoparticles (AuNPs), which were used as a surface enhanced Raman scattering (SERS) active colloids with the advantages of ultrasensitivity, reproducibility and chemical stability. The results demonstrated that the limits of detection (LODs) of the DM and CBF were found to be as low as 0.01 mg/L. The SERS intensity showed a good linear relationship with DM (<i>R</i><sup>2</sup> = 0.9908) and CBF (<i>R</i><sup>2</sup> = 0.9801) concentration from 0.01 to 10 mg/L. In a practical application, DM and CBF residues in soil were easily detected by SERS with the flexible AuNPs colloids, and the LODs of DM and CBF were found to be as low as 0.056 mg/kg and 0.053 mg/kg, respectively. Moreover, DM in soil could be qualitatively detected by the characteristic peaks at 560 and 1000 cm<sup>−1</sup>, and CBF in soil could be qualitatively detected by the characteristic peaks at 1000 and 1299 cm<sup>−1</sup>. The determination coefficient (R<sup>2</sup><sub>p</sub>) for DM and CBF reached 0.9176 and 0.8517 in partial least squares (PLS) model. Overall, it is believed that the prepared AuNPs can provide technical support for the accurate detection of pesticide residues in soil by SERS technique.https://www.mdpi.com/1422-0067/20/7/1731deltamethrincarbofuranpesticide residues in soilsurface-enhanced Raman spectroscopygold nanoparticles |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yong He Shupei Xiao Tao Dong Pengcheng Nie |
spellingShingle |
Yong He Shupei Xiao Tao Dong Pengcheng Nie Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS) International Journal of Molecular Sciences deltamethrin carbofuran pesticide residues in soil surface-enhanced Raman spectroscopy gold nanoparticles |
author_facet |
Yong He Shupei Xiao Tao Dong Pengcheng Nie |
author_sort |
Yong He |
title |
Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS) |
title_short |
Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS) |
title_full |
Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS) |
title_fullStr |
Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS) |
title_full_unstemmed |
Gold Nanoparticles for Qualitative Detection of Deltamethrin and Carbofuran Residues in Soil by Surface Enhanced Raman Scattering (SERS) |
title_sort |
gold nanoparticles for qualitative detection of deltamethrin and carbofuran residues in soil by surface enhanced raman scattering (sers) |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1422-0067 |
publishDate |
2019-04-01 |
description |
The residues of deltamethrin (DM) and carbofuran (CBF) in soil is becoming an intractable problem causing soil hardening and environmental pollution. This paper reports a very simple method via improved reduction of chloroauric acid by the trisodium citrate method for fabricating gold nanoparticles (AuNPs), which were used as a surface enhanced Raman scattering (SERS) active colloids with the advantages of ultrasensitivity, reproducibility and chemical stability. The results demonstrated that the limits of detection (LODs) of the DM and CBF were found to be as low as 0.01 mg/L. The SERS intensity showed a good linear relationship with DM (<i>R</i><sup>2</sup> = 0.9908) and CBF (<i>R</i><sup>2</sup> = 0.9801) concentration from 0.01 to 10 mg/L. In a practical application, DM and CBF residues in soil were easily detected by SERS with the flexible AuNPs colloids, and the LODs of DM and CBF were found to be as low as 0.056 mg/kg and 0.053 mg/kg, respectively. Moreover, DM in soil could be qualitatively detected by the characteristic peaks at 560 and 1000 cm<sup>−1</sup>, and CBF in soil could be qualitatively detected by the characteristic peaks at 1000 and 1299 cm<sup>−1</sup>. The determination coefficient (R<sup>2</sup><sub>p</sub>) for DM and CBF reached 0.9176 and 0.8517 in partial least squares (PLS) model. Overall, it is believed that the prepared AuNPs can provide technical support for the accurate detection of pesticide residues in soil by SERS technique. |
topic |
deltamethrin carbofuran pesticide residues in soil surface-enhanced Raman spectroscopy gold nanoparticles |
url |
https://www.mdpi.com/1422-0067/20/7/1731 |
work_keys_str_mv |
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