红外分光光度法中固体样品通常可用三种方法制样:压片法、糊剂法和薄膜法。糊剂法是把样品的细末分散(或悬浮)在与其折射率相近的液体介质中进行测定的方法,因为液体石蜡的折射率和大多数有机化合物的折射率相近,减少了散透光强度,散射现象大为降低,并且液体石蜡的粘度较大,红外光谱简 Solid samples can usually be prepared by infrared spectrophotometry in three ways: tabletting, paste and film processes. The paste method is a method of dispersing (or suspending) the fine powder of a sample in a liquid medium having a refractive index similar to that of liquid paraffin because the refractive index of liquid paraffin is similar to that of most organic compounds and the scattered light intensity is reduced , The scattering phenomenon is greatly reduced, and the viscosity of the liquid paraffin is larger, the infrared spectrum is simple