Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper
The purpose of this work was to detect carbendazim mixtures wrapped in paper. Unlike previous reports of THz-TDS for detecting pesticide residue, this work focused on detecting pesticide residue in packaged foods. Different weight ratios of carbendazim in polyethylene and in rice powder were detecte...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2017/6302868 |
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| author | Binyi Qin Zhi Li Zhihui Luo Huo Zhang Yun Li |
| author_facet | Binyi Qin Zhi Li Zhihui Luo Huo Zhang Yun Li |
| author_sort | Binyi Qin |
| collection | DOAJ |
| description | The purpose of this work was to detect carbendazim mixtures wrapped in paper. Unlike previous reports of THz-TDS for detecting pesticide residue, this work focused on detecting pesticide residue in packaged foods. Different weight ratios of carbendazim in polyethylene and in rice powder were detected qualitatively and quantitatively. Results show that pure carbendazim, polyethylene, and rice powder can be easily distinguished from each other. However, when the weight ratio was low, the absorbance of the mixture was similar with that of pure polyethylene and rice powder. With the help of SVM, carbendazim could be qualitatively detected in low weight ratio mixture successfully. Moreover, PLS and SVR were selected to quantitatively detect carbendazim mixtures. SVR has higher R and lower RMSECV, RMSEC, and RMSEP than PLS model. Lasty, the results also indicate that THz-TDS is a potential tool to detect pesticide residue in packaged foods qualitatively and quantitatively. |
| format | Article |
| id | doaj-art-d5a13ee39fc64c848a51bc41c66d5a6a |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-d5a13ee39fc64c848a51bc41c66d5a6a2025-02-03T01:26:05ZengWileyJournal of Spectroscopy2314-49202314-49392017-01-01201710.1155/2017/63028686302868Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in PaperBinyi Qin0Zhi Li1Zhihui Luo2Huo Zhang3Yun Li4School of Mechano-Electronic Engineering, Xidian University, Xi’an, Shanxi 710126, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an, Shanxi 710126, ChinaGuangxi Key Laboratory for Agricultural Resources Chemistry and Efficient Utilization (Cultivation Base), Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin, Guangxi 537000, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an, Shanxi 710126, ChinaGuangxi Key Laboratory for Agricultural Resources Chemistry and Efficient Utilization (Cultivation Base), Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of Guangxi, College of Chemistry and Food Science, Yulin Normal University, Yulin, Guangxi 537000, ChinaThe purpose of this work was to detect carbendazim mixtures wrapped in paper. Unlike previous reports of THz-TDS for detecting pesticide residue, this work focused on detecting pesticide residue in packaged foods. Different weight ratios of carbendazim in polyethylene and in rice powder were detected qualitatively and quantitatively. Results show that pure carbendazim, polyethylene, and rice powder can be easily distinguished from each other. However, when the weight ratio was low, the absorbance of the mixture was similar with that of pure polyethylene and rice powder. With the help of SVM, carbendazim could be qualitatively detected in low weight ratio mixture successfully. Moreover, PLS and SVR were selected to quantitatively detect carbendazim mixtures. SVR has higher R and lower RMSECV, RMSEC, and RMSEP than PLS model. Lasty, the results also indicate that THz-TDS is a potential tool to detect pesticide residue in packaged foods qualitatively and quantitatively.http://dx.doi.org/10.1155/2017/6302868 |
| spellingShingle | Binyi Qin Zhi Li Zhihui Luo Huo Zhang Yun Li Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper Journal of Spectroscopy |
| title | Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper |
| title_full | Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper |
| title_fullStr | Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper |
| title_full_unstemmed | Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper |
| title_short | Feasibility of Terahertz Time-Domain Spectroscopy to Detect Carbendazim Mixtures Wrapped in Paper |
| title_sort | feasibility of terahertz time domain spectroscopy to detect carbendazim mixtures wrapped in paper |
| url | http://dx.doi.org/10.1155/2017/6302868 |
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