Citation: Xin Ning Zhao, Qi Zeng Shi, Guo Hong Xie, Qing Xiang Zhou. TiO₂ nanotubes :A novel solid phase extraction adsorbent for the sensitive determination of nickel in environmental water samples[J]. Chinese Chemical Letters, ;2008, 19(7): 865-867. doi: 10.1016/j.cclet.2008.05.004 shu

TiO₂ nanotubes :A novel solid phase extraction adsorbent for the sensitive determination of nickel in environmental water samples

a School of Chemistry and Environmental Sciences, Henan Normal University, Henan Key Laboratory for Environmental pollution Control, Key Laboratory for Yellow River and Huaihe River Water Environment and Pollution Control, Ministry of Education, Xinxiang 453007, China;
b College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China

Received Date: 18 December 2007

Fund Project: the Fund of Henan Normal University (No.2006PL06) and the grants from the Henan Key Laboratory for environmental pollution control.Natural Science Foundation of Henan Province(No.072300460010)This work was supported by the Creative Talented Person’s Fund of Henan Province (No.[2005]126)

A novel method was developed for the sensitive determination of nickel in environmental water samples by using TiO₂ nanotubes,a new nanomaterial,as solid phase extraction absorbent.In general,TiO₂ nanomaterials were often used for catalytic degradation of pollutants in environmental field,and only a very few application in environmental analytic chemistry.In present work,TiO₂ nanotubes was firstly used for the enrichment of nickel and the factors would influence the preconcentration performance were optimized.Under the optimal conditions,TiO₂ nanotubes exhibited its good enrichment capacity for nickel and the detection limit of the proposed method was 1 ng mL^-1.The proposed method was validated with real water samples,and excellent results were obtained with the spiked recoveries in the range of 94.4-99.2%,respectively.
- TiO₂ nanotubes,
- Nickel,
- Flame atomic absorption spectrometry
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