Magnetic Dispersive Micro-solid Phase Extraction of Ni(II) and Pb(II) on ZnFe2O4 Nanotubes for Their Determination by Inductively Coupled Plasma Mass Spectrometry
This work was supported by the Research and Innovation Initiatives of Wuhan Polytechnic University (No. 2018J04) and Special Fund for Agro-scientific Research in the Pub lic Interest (Project No. 201503135- 22).
机构署名：
本校为第一且通讯机构
院系归属：
食品科学与工程学院
化学与环境工程学院
摘要：
Magnetic ZnFe 2 O 4 nanotubes (ZFONTs) were prepared as a new adsorbent for dispersive micro-solid phase extraction of Ni(II) and Pb(II) in environmental and biological samples prior to their determination by inductively coupled plasma mass spectrometry. The adsorption behaviors of the target ions on ZFONTs were studied. The results indicated that the analytes were quantitatively retained on ZFONTs in the pH range of 6.0–8.0, and eluted completely with 1.0 mL of 0.3 mol L -1 HNO 3 solution. Separation of the sorbent from the aqueous phase was ...
