作者: Haisheng Zhang , Weiping Zhou , Hongqing Wang , Yuyuan Wang , Fangfang He
关键词: Adsorption 、 Analytical chemistry 、 Carbon nanotube 、 Detection limit 、 Ion 、 Selectivity 、 Functional monomer 、 Chemistry 、 Atomic absorption spectroscopy
摘要: A new surface ion-imprinted Multi-walled carbon nanotubes (MCNTs), which was 6,6'-((1E,1'E)-(pyridine-2,6-diyl- bis(azanylyl))bis(methanylylidene))bis(2-allyl-phenol) and Pb(II) complex as functional monomer template ion presented for extracting enrichment traces of ion. Parameters affecting the recovery have been investigated in detail. The novel IMCNTs display high affinity, specificity, selectivity with a maximum uptake capacity 115.5 mg·g–1 at pH 4.0. Meanwhile, only 11 mins enough 98.5% IMCNTs. No significant loss adsorption is observed when are reused eleven times. Separation preconcentration particles results limit detection 0.47 μg·L–1 (3σ) RSD (n = 8) 1.16% by using atomic absorption spectrophotometer (AAS)