Methods: The staining method and washing step were reformed and tap-water was replaced by double distilled water.
方法：实验从染色冲洗的环节进行改良，采用蒸馏水(纯净水)取代自来水。
DNA dissolved in double-distilled water were deposited onto gold surface and covered with 50%glycerol-water solution.
把溶于双蒸水的脱氧核糖核酸(DNA)铺展在金膜上，再覆盖一薄层50%甘油水溶液。
DNA dissolved in double-distilled water were deposited onto gold surface and covered with 50%glycerol-water solution.
把溶于双蒸水的脱氧核糖核酸(DNA)铺展在金膜上，再覆盖一薄层50%甘油水溶液。
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