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TP（Top-Performance）\SP（Super-Performance）Series of liquid chromatography column is an improvement and improvement of sealing and modification technology of silica gel surface by Huide Yi company on the basis of the original XP (HI expecting) series column which is economical and efficient, so as to reach the level of world-class chromatographic column, and has outstanding performance in batch reproducibility and stability.TP series AQ series hydrophilic column, in 100% pure water conditions for a long time to use still maintain the perfect peak shape.