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Spectroscopy Letters
An International Journal for Rapid Communication
Volume 49, 2016 - Issue 2
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ARTICLES

Establishment of rapid detection method of phosalone residues in pakchoi by surface-enhanced Raman scattering spectroscopy

Shuanggen HuangKey Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang, China;Optics-Electrics Application of Biomaterials Lab, JiangXi Agricultural University, Nanchang, China
,
Jianping HuKey Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang, ChinaCorrespondence[email protected]
,
Ruimei WuOptics-Electrics Application of Biomaterials Lab, JiangXi Agricultural University, Nanchang, China
,
Muhua LiuOptics-Electrics Application of Biomaterials Lab, JiangXi Agricultural University, Nanchang, China
,
Yuan FanOptics-Electrics Application of Biomaterials Lab, JiangXi Agricultural University, Nanchang, China
,
Xiaobin WangOptics-Electrics Application of Biomaterials Lab, JiangXi Agricultural University, Nanchang, China
&
Ping GuoJiangxi Entry-Exit Inspection and Quarantine Technology Center, Nanchang, China
 show all
Pages 128-134 | Received 10 Jul 2015, Accepted 16 Sep 2015, Published online: 04 Jan 2016
 
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ABSTRACT

Surface-enhanced Raman scattering spectroscopy method coupled with colloidal gold was used to detect and characterize phosalone pesticide in pakchoi. Theoretical and experimental Raman spectra were compared to analyze and identify the assignment of vibrations. Pakchoi samples containing phosalone pesticide residues were prepared and extracted for Raman spectra acquirement and gas chromatography-mass spectrometry measurement. A statistical regression analysis method was applied for the detection of phosalone residues. This analytical method was validated by predicted recovery and the paired-samples T test with five unknown samples. This study demonstrates that surface-enhanced Raman scattering (SERS) method is capable of detecting phosalone residues in pakchoi quickly and accurately.

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