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The gas burden from conventional LC flow rates creates nearly _____ times more gas than cryo-pumped vacuum system can handle.

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The gas burden from conventional LC flow rates creates nearly _____ times more gas than cryo-pumped vacuum system can handle.

(a) 5

(b) 10

(c) 20

(d) 40

I had been asked this question during an online interview.

Asked question is from Liquid Chromatograph- Mass Spectrometer in portion Mass Spectrometer of Analytical Instrumentation

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Correct choice is (c) 20

The best I can explain: The gas burden from conventional LC flow rates creates nearly 20 times more gas than cryo-pumped vacuum system can handle.

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