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Which of the following is not a desirable feature of the ovens used in gas chromatography?

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Which of the following is not a desirable feature of the ovens used in gas chromatography?

(a) It must have a fast rate of heating

(b) Power consumption should be kept low

(c) It must have maximum thermal gradients

(d) It should have proper insulation

I had been asked this question during an online interview.

I want to ask this question from Gas Chromatography topic in section Chromatography of Analytical Instrumentation

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Correct choice is (c) It must have maximum thermal gradients

Easiest explanation: The ovens used in gas chromatography must have maximum thermal gradients. The temperature must be uniform over the whole column.

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