PMID- 35006306 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20220302 LR - 20231213 IS - 1618-2650 (Electronic) IS - 1618-2642 (Linking) VI - 414 IP - 7 DP - 2022 Mar TI - Simultaneous and rapid detection of polychlorinated phenols in water samples by surface-enhanced Raman spectroscopy combined with principal component analysis. PG - 2385-2395 LID - 10.1007/s00216-022-03876-0 [doi] AB - In this work, a simple, high-throughput, and sensitive analytical method based on surface-enhanced Raman spectroscopy (SERS) and principal component analysis (PCA) was fabricated for simultaneous and rapid determination of three polychlorinated phenols (PCPs) including 2,4-dichlorophenol (2,4-DCP), 2,4,5-trichlorophenol (2,4,5-TCP), and 2,3,4,6-tetrachlorophenol (2,3,4,6-TeCP). The aggregated Ag nanoparticles (AgNPs) induced by inorganic salt ions were used as sensitive SERS substrate, and the electromagnetic field distribution of AgNPs with different distances was simulated by finite difference time domain (FDTD) to verify the theory feasibility. The high throughput and rapid detection can be achieved by commercial 96-pore plate. Under the optimum conditions, the linear relationship between the Raman intensity and the concentrations of PCPs was established with satisfied correlation coefficient. The limits of detection (LOD) for 2,4-DCP, 2,4,5-TCP, and 2,3,4,6-TeCP are 0.27 mg L(-1), 0.09 mg L(-1), and 0.10 mg L(-1) by rules of 3sigma, respectively. The simultaneous quantitative analysis can be achieved thanks to the independent Raman characteristic peaks of three PCPs. Afterwards, the PCA method was used to eliminate the limitations of overlapping of characteristic Raman peaks in structural analogues of 2,4-DCP, 2,4,5-TCP, and 2,3,4,6-TeCP. The recovery experiments including single PCPs and mixed PCP samples show satisfied recoveries ranging from 85.0 to 113.9% and 80.4 to 114.0% with RSDs in range of 0.4-9.5% and 1.1-10.7%, respectively. The proposed method shows great potentials in rapid, high-throughput, and sensitive monitoring of the contaminants in water and pesticide samples with similar structure. Here, we introduced aggregated Ag nanoparticles (AgNPs) induced by inorganic salt ion for simultaneous, rapid, and sensitive determination of polychlorinated phenols (PCPs) including 2,4-dichlorophenol (2,4-DCP), 2,4,5-trichlorophenol (2,4,5-TCP), and 2,3,4,6-tetrachlorophenol (2,3,4,6-TeCP) by surface-enhanced Raman spectroscopy (SERS) combined with principal component analysis (PCA). The AgNPs induced by inorganic salt ions were used as sensitive SERS substrate, and the electromagnetic field distribution of AgNPs with different distances was simulated by finite difference time domain (FDTD) to verify the theory feasibility. The PCA method was used to eliminate the limitations of overlapping of characteristic Raman peaks in structural analogues of 2,4-DCP, 2,4,5-TCP, and 2,3,4,6-TeCP. The proposed method shows great potentials in rapid, high-throughput, and sensitive monitoring of the contaminants in water and pesticide samples with similar structure. CI - (c) 2022. Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Ge, Kun AU - Ge K AD - School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, China. FAU - Li, Yonghui AU - Li Y AD - Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China. FAU - Wu, Qiyue AU - Wu Q AD - Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China. FAU - Gu, Ying AU - Gu Y AD - Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China. guying@kust.edu.cn. LA - eng GR - 32102073/National Natural Science Foundation of China/ GR - 2021J0058/Scientific Research Fund Project of Yunnan Provincial Department of Education/ GR - 202102AE090021/Sub-project of Yunnan Science and Technology Planning Project/ PT - Journal Article DEP - 20220110 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 SB - IM EIN - Anal Bioanal Chem. 2024 Feb;416(4):1101. PMID: 38093116 OTO - NOTNLM OT - Detection OT - Polychlorinated phenols OT - Principal component analysis OT - Screening OT - Surface-enhanced Raman spectroscopy EDAT- 2022/01/11 06:00 MHDA- 2022/01/11 06:01 CRDT- 2022/01/10 12:27 PHST- 2021/10/28 00:00 [received] PHST- 2022/01/04 00:00 [accepted] PHST- 2021/12/23 00:00 [revised] PHST- 2022/01/11 06:00 [pubmed] PHST- 2022/01/11 06:01 [medline] PHST- 2022/01/10 12:27 [entrez] AID - 10.1007/s00216-022-03876-0 [pii] AID - 10.1007/s00216-022-03876-0 [doi] PST - ppublish SO - Anal Bioanal Chem. 2022 Mar;414(7):2385-2395. doi: 10.1007/s00216-022-03876-0. Epub 2022 Jan 10.