What are the particle size measurement methods of ultrafine nano powder

 Ultrafine nano powder is an important product of the development of modern science and technology, which is widely used in such fields as electronic products, biomedicine and so on. The particle size of ultra-fine nano powder has an important impact on its performance, so the development of particle size detection technology of ultra-fine nano powder has also become a hot topic. As a company specializing in the research and production of ultra-fine nano powder, Saite also has rich experience and technical accumulation in particle size detection of ultra-fine nano powder.
1、 Common detection methods:
The common detection methods for the particle size of ultra-fine nano powder are dynamic light scattering (DLS) and laser diffraction particle size analysis (LPS). Among them, the principle of DLS detection is to use the change in scattered light intensity to reflect the particle size of the sample, with a detection range of 1nm to 1 μ m. Suitable for detecting colloidal liquid particles. LPS determines the particle size by measuring the surface reflection laser spectrum of the sample, with a detection range of 0.04-2600 μ m. Suitable for detecting particles in solid, liquid, gas samples or dispersed systems.
2、 Sample processing:
In addition to selecting appropriate detection methods, the process of sample processing is also very important in the particle size detection of ultrafine nano powders. Firstly, it is necessary to disperse and dilute the sample appropriately to ensure uniform particle dispersion and prevent particle aggregation or precipitation from affecting the detection results. Secondly, it is necessary to choose appropriate dispersants to enhance the stability of the sample and improve the detection accuracy.
3、 Precautions before testing:
The following points should be paid attention to before particle size detection of ultra-fine nano powder. Firstly, the instrument should be preheated and calibrated normally to ensure that it is in optimal working condition. Secondly, it should be ensured that the temperature and humidity environment between the sample and the laboratory environment are consistent to avoid the influence of the environment on the test results. Finally, it is necessary to choose appropriate experimental conditions, such as measuring angles, measuring temperatures, measuring media, etc.
In practical application, the particle size detection technology of ultra-fine nano powder has a broad application prospect, which can meet the needs of different fields for the particle size of ultra-fine nano powder. Saite will, as always, be committed to the development, production and testing technology innovation of ultra-fine nano powder to provide customers with more high-quality and reliable products and services.