您好，欢迎访问四川省农业科学院 机构知识库！

Optimization of ultrasound-assisted magnetic retrieval-linked ionic liquid dispersive liquid-liquid microextraction for the determination of cadmium and lead in water samples by graphite furnace atomic absorption spectrometry

文献类型： 外文期刊

作者： Yao, Li 1 ; Wang, Xie 1 ; Liu, Haitao 1 ; Lin, Chaowen 1 ; Pang, Liangyu 1 ; Yang, Junwei 2 ; Zeng, Qingbin 2 ;

作者机构： 1.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu 610066, Sichuan, Peoples R China

2.Sichuan Tobacco Co, Panzhihua Branch, Panzhihua 617026, Peoples R China

关键词： Central composite design;Fractional factorial design;Graphite furnace atomic absorption spectrometry;Heavy metals;Ionic liquid dispersive liquid-liquid microextraction;Magnetic nanoparticles

期刊名称：JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY （ 影响因子：6.064； 五年影响因子：5.914 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A simple and efficient method for the determination of Cd and Pb in water samples was developed by ultrasound-assisted magnetic retrieval-linked ionic liquid dispersive liquid-liquid microextraction (UA-MR-IL-DLLME) preconcentration and graphite furnace atomic absorption spectrometry (GFAAS) detection. Ionic liquid (IL) [Hmim] [PF6] was used as the extractant, ammonium pyrrolidine dithiocarbamate (APDC) as the complexing agent and Fe(3)o(4) nanoparticles as the sorbent, while ultrasound was applied to assist the dispersion of the extractant and accelerate the mass transfer process. The effect of different factors on the extraction efficiency including pH, IL volume, APDC amount, ultrasound extraction time, ultrasound desorption time and Fe3O4 amount was studied by a fractional factorial design to screen for the most important factors. Then a central composite design was used to optimize the significant factors. Under the optimal conditions, the method has linear calibration curves over the range of 0.3-20 ng/mL for Cd and 0.5-40 ng/mL for Pb, with correlation coefficients (R) of 0.9990 and 0.9986 for Cd and Pb, respectively. The limits of detection were 0.1 ng/mL and 0.15 ng/mL with relative standard deviations of 3.4% and 2.8% for Cd and Pb, respectively. Finally, the method was successfully applied for the determination of Cd and Pb in the real water samples and satisfactory recoveries were achieved. (C) 2017 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.

  • 相关文献

[1]Mineral constituents of a prized edible mushroom (Tricholoma matsutake) and soils beneath the fruiting bodies from the production areas across China. Xiong Chuan,Li Xiao-lin,Zheng Lin-yong,Li Shu-hong,Li Qiang,Huang Wen-li,Xiong Chuan,Zheng Lin-yong,Liu Cheng-yi. 2016

[2]Mercury in forest mushrooms and topsoil from the Yunnan highlands and the subalpine region of the Minya Konka summit in the Eastern Tibetan Plateau. Saba, Martyna,Wiejak, Anna,Liu, Hong-Gao,Li, Tao,Wang, Ji-Peng,Zhang, Dan,Wang, Ji-Peng,Zhang, Ji,Wang, Yuan-Zhong,Zhang, Ji,Wang, Yuan-Zhong.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：四川省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台