Qi Xiaohui
Dalian Nationalities University
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Publication
Featured researches published by Qi Xiaohui.
international conference on new technology of agricultural engineering | 2011
Yu Jicheng; Liu Qiu; Qi Xiaohui; Guo Naifei
The applicability of supercritical fluid extraction (SFE) in organophosphorus pesticide multi-residue analysis in vegetable samples was investigated. Fortification experiment and orthogonal test based on the trichlorfon as investigating target were conducted to optimize the extraction procedure in SFE by varying the CO2 flow, extraction oven temperature, outlet temperature and pressure. The best efficiency was achieved at 18mL·min−1, 60°C, 80°C and 350 bar, respectively. The analytical screening was performed by capillary gas chromatography equipped with flame photometric detector (FPD). Recoveries for the majority of pesticides from spiked samples of vegetable with the fortification level of 0.04–0.10 mg·kg−1 ranged from 80.5 to 97.3%, and the relative standard deviation (RSD) was from 2.9 to 8.4. The detection limits were from 0.008 to 0.035 mg·kg−1 for FPD, and meeting the requirement set of native standard. The optimized SFE method is a simple,low cost, environment-friendly and an effective preparation method for determination of pesticide multi-residue at trace level in leafy vegetables in comparison with solid-liquid extraction method.
Archive | 2017
Liu Qiu; Yu Jicheng; Chen Chao; Qi Xiaohui
Archive | 2015
Liu Qiu; Yu Jicheng; Pan Junhua; Qi Xiaohui; Song Yanchao
Archive | 2015
Yu Jicheng; Liu Qiu; Qi Xiaohui; Pan Junhua
Archive | 2014
Jiang Bo; Hu Wenzhong; Qi Xiaohui; Liu Changjian; Gao Mingbo; Jin Liming
Archive | 2014
Jiang Bo; Hu Wenzhong; Liu Changjian; Jiang Aili; Qi Xiaohui
Archive | 2014
Jiang Bo; Hu Wenzhong; Zheng Wei; Liu Changjian; Qi Xiaohui; Chen Huiying
Archive | 2013
Zhou Jiting; Yan Jianfang; Liu Qiu; Qi Xiaohui; Liu Changjian
Journal of Jilin Agricultural University | 2009
Cheng Hao; Qi Xiaohui; Yan Jianfang; Yu Jicheng; Liu Qiu; Liu ZhiHeng
Shenyang Nongye Daxue Xuebao | 2008
Liu Qiu; Qi Xiaohui; Yan Jianfang; Cheng Hao; Yu Jicheng