When the aqueous solvent (solvent A) is cleaned up in terms of an on-line precolumn, the purity of the organic solvent (solvent B) can be tested according to the chromatogram of the blank gradient.

 
  • 当含水溶剂通过预柱在线净化后,根据空白梯度色谱图可测试有机溶剂的纯度。
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