Why Do HPLC and UPLC Columns Operate at High Pressures

question 11

Multiple Choice

Why do HPLC and UPLC columns operate at high pressures?

• A) The analysis is much faster when pressurized
• B) To keep air out of the column
• C) To increase the column lifetime
• D) The mobile phase is tightly packed into the column so it takes pressure to force it through
• E) none of the above

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