The research on the above substances expressed that concentration of solution directly effect the particles size, the higher concentration help to get the larger particles size, on the contrary less particles size will be obtained.

• 对几种物质的研究显示，溶剂相浓度均直接影响颗粒尺寸，在较高浓度下可以制备得到较大的颗粒，浓度降低将得到较小的颗粒；