GB/T 43749-2024 "Microbeam analysis, electron probe microanalysis, quantitative analysis method for anhydrous carbonic acid salt minerals" specifies the detailed steps and requirements for the quantitative analysis of anhydrous carbonic acid salt minerals using electronic probes, including instrumental equipment, reference materials, sample prepative, analytical process, element content calculation, result processing and preparation of analytical reports. This standard is applicable to the quantitative analysis of anhydrous carbonic acid salt minerals using X-Rays spectrometer. It aims to provide an accurate and reliable analytical method for the quantitative study and evaluation of the chemical composition of mineral samples in geology, mineralogy and related fields. The standard refers to a number of relevant documents, such as microbeam analysis technical specifications, numerical revision rules, general rules for quantitative analysis methods of electronic probes, etc., to ensure the accuracy and comparability of analysis results and meet the needs of scientific research and industrial applications.