The DNPH-derivatives were extracted from the silica gel by ultrasonic treatment with acetonitrile.

 
  • 用浸漬2,4-二硝基苯肼(DNPH)的硅膠管采樣,用乙腈在超聲中洗脫,高效液相色譜分離,二極管陣列檢測器檢測。
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