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目的 水熱法制備超順磁性四氧化三鐵納米顆粒，檢測其物理學及磁學性質，并探討其用于物理化學溶栓的可行性。方法 水熱法制備聚乙二醇6000包被的四氧化三鐵顆粒，采用X射線衍射法分析其結構，用掃描電鏡測量其直徑及分布，用振動樣品磁強計檢測磁學參數(shù)。結果 所得樣品為四氧化三鐵晶體，粒徑為200nm，質量飽和磁場強度為79.8emu/g Fe。結論 制備的樣品粒徑均一，分散性好，超順磁性，水溶性好，可用于物理化學溶栓。

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