Results showed that the size of particles was in the range of 10 ~ 30 nm and all the particles were anatase crystals having shapes of rectangle, spindle and puncheon, etc.
结果表明：所得颗粒大小为10 ~ 30nm，形状有长方形、纺锤形、短柱形等，且颗粒均为锐钛矿型晶体。
The iron core size was 15 nm and the formation of Fe(3)O(4) crystal in SPIO nanoparticles was confirmed by X-ray diffraction (XRD) analysis.
经X射线衍射分析证实，铁核的大小为15纳米，在SPIO 纳米颗粒中形成了Fe3O4晶体。
SEM analysis showed that the crystal structure of a good size is about 200 nm or so, XPS analysis showed the traces of manganese, near-ideal theory.
SEM分析表明其晶体结构良好，粒径大约在200纳米左右，XPS分析表明含有微量的三价锰，近乎于理想的理论计算。
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