將離心沉降技術結合一種利用不同液體密度梯度，先分離再檢測粉體粒徑的方法，為具高精確度及解析度的奈米粒徑分析技術。
Combining the centrifugal sedimentation technology with a method that uses different liquid density gradients to separate and then detect the particle size of the powder, which is a high-precision and resolution of nano-particle size analyzer.