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mmsong1987金蟲 (正式寫手)
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[求助]
油溶性納米粒子改性問題
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本人合成了油酸包裹的油溶性的氧化鐵納米粒子,試圖在其表面引入羧基,參考以下文獻(xiàn)的方法(In a typical experiment, Fe3O4 nanocrystals (10 mg) with desired sizes were dissolved in 1 mL of toluene. 2,3-Dimercaptosuccinic acid molecules (5 mg) were dissolved in 1 mL of dimethyl sulfoxide (DMSO), and the solution is added into the nanocrystal solution. The resulting solution was vortexed for 24 h, and black precipitates were observed, which were isolated through centrifugation and dissolved in water.)沒有觀察到相應(yīng)的沉淀,明顯改性不成功啊,有沒有做過的蟲子給指導(dǎo)下,謝謝! 還有沒有其它比較簡便靠譜的方法啊? |
鐵蟲 (初入文壇)
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