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- W2319932487 abstract "A method for the determination of lead and cadmium was developed with graphene-TiO 2 composites (GN-TiO 2 ) as adsorbents combined with graphite furnace atomic absorption spectrometry. Effects of various experimental conditions on the adsorption capacity were investigated. The optimized conditions were: sample pH as 5.0, contact time as 60 min, and adsorbent dosage as 0.02 g. Results showed that the processes could be simulated by a pseudo-second-order model. The adsorption process was proved to be an endothermic one. LODs of lead and cadmium of the developed method were calculated as 0.086 μg/L and 0.006 μg/L with RSDs of 3.2% and 2.5%, respectively. Furthermore, the present method was applied to the determination of lead and cadmium in different reference materials and real tea samples with satisfactory results." @default.
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- W2319932487 date "2013-03-15" @default.
- W2319932487 modified "2023-09-25" @default.
- W2319932487 title "石墨烯/二氧化钛复合材料富集-石墨炉原子吸收光谱法测定铅和镉" @default.
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