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[求助] 金纳米颗粒制备问题

按照这篇文献“Seeded Growth Synthesis of Uniform Gold Nanoparticles with Diameters of 15-300 nm”制备大尺寸纳米颗粒时为什么在45分钟后分别加完氯金酸,柠檬酸三钠和抗坏血酸,之后沸腾加热时,溶液颜色由酒红色几乎变成无色透明的呢?
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