Label-free identification of trace microcystin-LR with surface-enhanced Raman scattering spectra
文献类型：期刊论文
| 作者 | He, Shixuan1,2 ; Xie, Wanyi1; Fang, Shaoxi1; Zhou, Daming1; Djebbi, Khouloud1; Zhang, Zhiyou2; Du, Jinglei2; Du, Chunlei1,2; Wang, Deqiang1
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| 刊名 | TALANTA
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| 出版日期 | 2019-04-01 |
| 卷号 | 195页码:401-406 |
| 关键词 | Microcystin-LR Surface-enhanced Raman scattering Principal component analysis |
| ISSN号 | 0039-9140 |
| DOI | 10.1016/j.talanta.2018.11.072 |
| 通讯作者 | He, Shixuan(heshixuan@cigit.ac.cn) ; Du, Chunlei(cldu@cigit.ac.cn) ; Wang, Deqiang(dqwang@cigit.ac.cn) |
| 英文摘要 | The analysis of trace microcystin-LR (MC-LR) plays important roles in environmental fields, especially in monitoring domestic water quality and safety, since it has particularly harmful effect on wild and domestic animals as well as humans at low doses. Herein, we combine confocal Raman spectroscopy with SERS-AG substrate to characterize the "fingerprint" information of MC-LR directly. High sensitivity of SERS-AG substrates was verified by utilizing the probe molecule Rhodamine 6 G. Mapping spectra demonstrated good reproducibility of MC-LR identification with label-free surface-enhanced Raman scattering (SERS) strategy. Differences between SERS spectra of MC-LR and R6G, microcystin-RR were evaluated by calculating their scores and loading weights with an unsupervised exploratory principal component analysis method. Then, relationship between Raman intensities and concentrations was preliminary analyzed with SERS spectra of MC-LR and the lowest concentration of MC-LR identification was 10(-6) mg L-1 while using SERS-AG substrate. Thereafter, 68.6% quantitative recovery of 10(-3) mg L-1 MC-LR in tap water samples was obtained by the proposed label-free SEAS method. These results showed that confocal Raman spectroscopy with label-free surface-enhanced Raman scattering strategy can handle the identification of trace MC-LR for monitoring water quality and safety worldwide in future. |
| 资助项目 | Natural Science Foundation of Chongqing, China[cstc2018jcyjAX0310] ; Chongqing Science and Technology Innovation in Social Livelihood of the People[cstc2015shmszxX0002] ; National Natural Science Foundation of China[21507131] ; National Natural Science Foundation of China[41603089] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000456762000052 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/7397]  |
| 专题 | 精准医疗单分子诊断技术研究中心 |
| 通讯作者 | He, Shixuan; Du, Chunlei; Wang, Deqiang |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, ShuiTu Technol Dev Zone, 266 Fangzheng Ave, Chongqing 400714, Peoples R China 2.Sichuan Univ, Dept Phys, 29 Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Shixuan,Xie, Wanyi,Fang, Shaoxi,et al. Label-free identification of trace microcystin-LR with surface-enhanced Raman scattering spectra[J]. TALANTA,2019,195:401-406. |
| APA | He, Shixuan.,Xie, Wanyi.,Fang, Shaoxi.,Zhou, Daming.,Djebbi, Khouloud.,...&Wang, Deqiang.(2019).Label-free identification of trace microcystin-LR with surface-enhanced Raman scattering spectra.TALANTA,195,401-406. |
| MLA | He, Shixuan,et al."Label-free identification of trace microcystin-LR with surface-enhanced Raman scattering spectra".TALANTA 195(2019):401-406. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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