Chemically modified silica gel with p-dimethylaminobenzaldehyde for selective solid-phase extraction and preconcentration of Cr(III), Cu(II), Ni(II), Pb(II) and Zn(II) by ICP-OES

Yuemei Cui, Xijun Chang, Xiangbing Zhu, Haixia Luo, Zheng Hu, Xiaojun Zou, Qun He

Microchemical Journal · 2007 · 133 citations · 39 references

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