Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC
A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simul...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tsinghua University Press
2021-05-01
|
| Series: | Food Science and Human Wellness |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213453021000380 |
| _version_ | 1797723712109150208 |
|---|---|
| author | Guijie Li Xu Zhang Tingting Liu Hongxiu Fan Hongcheng Liu Shangyu Li Dawei Wang Lan Ding |
| author_facet | Guijie Li Xu Zhang Tingting Liu Hongxiu Fan Hongcheng Liu Shangyu Li Dawei Wang Lan Ding |
| author_sort | Guijie Li |
| collection | DOAJ |
| description | A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides. |
| first_indexed | 2024-03-12T10:06:42Z |
| format | Article |
| id | doaj.art-c21c5c2ead1f41e3b388e3c9e0b05f14 |
| institution | Directory Open Access Journal |
| issn | 2213-4530 |
| language | English |
| last_indexed | 2024-03-12T10:06:42Z |
| publishDate | 2021-05-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Food Science and Human Wellness |
| spelling | doaj.art-c21c5c2ead1f41e3b388e3c9e0b05f142023-09-02T11:14:49ZengTsinghua University PressFood Science and Human Wellness2213-45302021-05-01103375382Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GCGuijie Li0Xu Zhang1Tingting Liu2Hongxiu Fan3Hongcheng Liu4Shangyu Li5Dawei Wang6Lan Ding7College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Jilin Province Product Quality Supervision and Inspection Institute, Changchun 130103, ChinaCollege of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, ChinaCollege of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, ChinaCollege of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, ChinaCollege of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, ChinaJilin Province Product Quality Supervision and Inspection Institute, Changchun 130103, ChinaCollege of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; Corresponding author.College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China; Corresponding author.A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides.http://www.sciencedirect.com/science/article/pii/S2213453021000380Dynamic microwave-assisted extractionLiquid phase microextractionGas chromatographyOrganochlorine pesticidesGrain |
| spellingShingle | Guijie Li Xu Zhang Tingting Liu Hongxiu Fan Hongcheng Liu Shangyu Li Dawei Wang Lan Ding Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC Food Science and Human Wellness Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain |
| title | Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC |
| title_full | Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC |
| title_fullStr | Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC |
| title_full_unstemmed | Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC |
| title_short | Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC |
| title_sort | dynamic microwave assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by gc |
| topic | Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain |
| url | http://www.sciencedirect.com/science/article/pii/S2213453021000380 |
| work_keys_str_mv | AT guijieli dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT xuzhang dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT tingtingliu dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT hongxiufan dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT hongchengliu dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT shangyuli dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT daweiwang dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc AT landing dynamicmicrowaveassistedextractioncombinedwithliquidphasemicroextractionbasedonthesolidificationofafloatingdropfortheanalysisoforganochlorinepesticidesingrainsfollowedbygc |