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liyunlei2050

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[求助] 求分子量为500左右的可用于Sephadex LH-20的标记物!!

大家好,我现在在过Sephadex LH-20这种葡聚糖柱,想找一种带颜色的分子量500左右的化合物作为标记物,以便于判断如此大小分子的化合物要多久才能从柱中洗脱下来,请有经验的朋友指点,谢谢。。
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