General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 42348-2023
Introduction
GB/T 42348-2023 Particle Size Analysis - Particle Tracking Analysis (PTA) is a national standard in China that outlines the method for analyzing particle size using particle tracking analysis. PTA is a widely employed technique for characterizing nanoparticles and micro-particles in various industries, including pharmaceuticals, cosmetics, and environmental monitoring.
This standard provides guidelines for the sample preparation, instrument calibration, and data analysis involved in PTA. It covers the principles and procedures for measuring the particle size distribution, as well as the determination of particle concentration and size range. The standard also includes specifications for the instrumentation and performance requirements, ensuring accurate and reliable results.
The PTA technique works by tracking the movement of individual particles in a liquid medium using advanced microscopy and image analysis. By analyzing the Brownian motion of particles, PTA can accurately determine their size distribution and concentration. This method is particularly useful for analyzing nano-sized particles in complex samples, as it can provide detailed information on particle size, shape, and concentration.
GB/T 42348-2023 is an essential tool for researchers and professionals involved in particle size analysis. It ensures the use of a standardized and reliable method for measuring particle size, allowing for accurate comparisons and consistent results. By following this standard, users can effectively characterize particles and make informed decisions in various fields, contributing to the advancement of scientific research and industrial applications.