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Which of the following is not true about the radial compression column when compared to standard separation column?

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Which of the following is not true about the radial compression column when compared to standard separation column?

(a) Internal diameter decreases

(b) Overall operating pressure decreases

(c) Analysis time decreases

(d) Solvent flow increases

The question was asked by my school principal while I was bunking the class.

My question is based upon Liquid Chromatography topic in portion Chromatography of Analytical Instrumentation

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Right choice is (a) Internal diameter decreases

To explain: Radial compression columns have a wider diameter than the standard separation column. The cartridges used are of low cost.

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