Category for separation and analytical instruments used in quality control, research and development, and product inspection in manufacturing industries. Includes main equipment such as liquid chromatography (HPLC), gas chromatography (GC), and ion chromatography, as well as components like columns, detectors, pumps, and autosamplers. Essential precision analytical instruments for component analysis, purity measurement, and impurity detection in chemical, pharmaceutical, food, and petrochemical plants. Distinguished from simple measuring tools and general analytical balances, specialized in high-precision analytical equipment using professional separation techniques.