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德國Merck company, as the first company to enter the research and production of chromatography, has experienced a full century of development in the field of chromatography. Today, Merck has become the world's largest manufacturer of silica gel for chromatography, the market leader in TLC, and the pioneer in the field of high performance liquid chromatography with Chromolith integrated chromatography. Its main products include chromatographic columns (analytical columns, semi-preparative columns and preparative columns), chromatographic fillers and TLC plates. After the merger of Merck and millimo, the original chromatographic column of millimo was added to provide a complete product line and strong innovation capability for global life science users. It is a world-class partner in the life science industry.