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What happens if a column is conditioned above its maximum temperature?

  • A.The conditioning simply takes less time
  • B.The column's efficiency improves permanently
  • C.The bleed falls to a lower steady level
  • D.The phase degrades and the column is ruined

Answer: D

Exceeding the rated limit decomposes the stationary phase irreversibly, and the column never recovers its efficiency or its low bleed. It is not a matter of speed, and neither efficiency nor bleed improves. A rating that describes where a component is destroyed rather than where it performs less well is one to treat as absolute, and the few degrees of margin are deliberately conservative.

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