The Guiding Principle of Chiral Innovative drugs clearly stipulates that "the direct method for determination of molecular configuration of chiral drugs is single crystal X-ray structure analysis".

Unlike powder XRD, which is widely used in the late stage of drug development and production, single crystal X-ray diffraction technology plays an important role in the early and middle stages of drug development.

With the gradual increase of drug crystal regulation, the quantitative analysis of the effective crystal in drug preparations is a very important link in the quality control process of drug production.

XRD technology is widely used in the fields of crystallography, physics and metallurgy, including qualitative and quantitative, crystal structure, mechanical analysis, etc. This paper mainly lists its application in polymer research.

The application of XRD in the refractory industry involves all aspects of refractory production. From raw material quality inspection, production process control to product quality inspection.

In drug research and development, crystal research runs through all stages from the screening of lead compounds to the final drug marketing.

Micro-xrd can analyze the original state of the sample and carry out phase analysis of various parts of the sample. In this paper, a geological sample lapis Lazuli is taken as an example to further illustrate the effect of micro-diffraction.

Petrological studies often require the identification of mineral compositions in rocks, especially those that are less abundant. Therefore, the qualitative analysis of minerals is the most important application of X-ray diffraction in the study of mineral petrology.

Polymers are commonly synthesized as fibers, sheets, and other solid forms. Its properties are greatly affected by its structural parameters such as crystallinity, crystal structure and orientation, and can be studied using XRD

X-ray diffraction is divided into two kinds of single crystal diffraction and powder diffraction, single crystal is mainly used for the determination of molecular weight and crystal structure, powder is mainly used for the identification and purity of crystalline substances.

With the development of XRD detection technology, instrument miniaturization, low energy consumption, simple use, intelligent detection is becoming more and more popular, and has become the trend of instrument update.

An X-ray diffractometer is an instrument used to measure residual stress inside a material. By analyzing the X-ray diffraction pattern of the material, the residual stress distribution inside the material is calculated.