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	1.	Graphene-based solid-phase extraction combined with flame atomic absorption spectrometry for a sensitive determination of trace amounts of lead in environmental water and vegetable samples. [electronic resource] by Wang, Yukun Gao, Shutao Zang, Xiaohuan Li, Jingci Ma, Jingjun Producer: 20120514 In: Analytica chimica acta vol. 716 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Development of dispersive liquid-liquid microextraction based on solidification of floating organic drop for the determination of trace nickel. [electronic resource] by Wang, Yukun Zhang, Jingwen Zhao, Bin Du, Xin Ma, Jingjun Li, Jingci Producer: 20120427 In: Biological trace element research vol. 144 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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