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Transport of Surface-modified Carbon Nanotubes through a Soil Column
Published on: April 2, 2015
Sensitive determination of fungicides and prometryn in environmental water samples using multiwalled carbon nanotubes
Qingxiang Zhou1, Junping Xiao, Yujie Ding
1School of Chemistry and Environmental Sciences, Henan Normal University, Henan Key Laboratory for Environmental Pollution Control, Xinxiang 453007, PR China. zhouqx@henannu.edu.cn
Abstract:
In this paper, a sensitive, fast and simple method with multiwalled carbon nanotubes SPE for the determination of metalaxyl, diethofencarb, myclobutanil, prometryn and tebuconazole was developed. Factors that may influence the extraction efficiency of MWCNTs such as the kind and volume of eluent, pH of sample solutions and sample volume were optimized. Under the optimized conditions, detection limits for metalaxyl, diethofencarb, myclobutanil, prometryn and tebuconazole were in the range of 2.99-6.94 ng L(-1), respectively. There was good linearity in the concentration range of 0.2-80 microg L(-1) except that prometryn was in the range of 0.05-20 microg L(-1). The precisions of proposed method were very excellent in the range of 1.43-5.86%. The method was successfully applied to the analysis of environmental water samples, and the results indicated that it could be used as a good alternative for the routine analysis in environmental field.
