【Daily Question】2018.7.21
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Multiple-choice question: For old chromatography columns with low efficiency and poor separation, the methods that can be used are ( ). A: Rinse with a strong solvent. B: Scrape off the contaminated bed layer and fill the column with the same type of packing to partially restore its efficiency. C: If the contamination is severe, discard the column or refill it. D: Use an appropriate mobile phase or dissolve the sample using a mobile phase. ABC
A: Rinse with a strong solvent. B: Scrape off the contaminated bed layer and fill the column with the same type of packing to partially restore its efficiency. C: If the contamination is severe, discard it or refill it
A: Rinse with a strong solvent. B: Scrape off the contaminated bed layer and fill the column with the same type of packing to partially restore its efficiency. C: If the contamination is severe, discard it or refill it