ultramicrochemistry

例句：

1. 1.Ultramicrochemistry is a field of study that focuses on the analysis of materials at extremely small scales.
   超微化学是一门专注于分析材料在极小尺度上的学科。
2. 2.In ultramicrochemistry, researchers are able to detect trace amounts of elements in samples with high sensitivity and accuracy.
   在超微化学中，研究人员能够以高灵敏度和准确性检测样本中的微量元素。
3. 3. The development of ultramicrochemistry has greatly improved our understanding of nanoscale phenomena and their applications in various fields.
   超微化学的发展极大地提高了我们对纳米尺度现象的理解及其在各个领域的应用。