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Which of the following is used in measuring the absorbance?

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in Fermentation Technology by (72.1k points)
Which of the following is used in measuring the absorbance?

(a) UV-visible spectrophotometer

(b) UV transilluminator

(c) Incubator

(d) Calorimeter

The question was asked during an interview for a job.

My enquiry is from Fermentation Laboratory topic in portion Equipping a Fermentation Laboratory, the Design and Preparation of Media for Bioprocesses of Fermentation Technology

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Right choice is (a) UV-visible spectrophotometer

For explanation: UV-visible spectrophotometer is used in the measurement of absorbance or optical density of a biological sample such as protein, DNA, RNA, etc. It uses the light in UV and visible ranges. Transilluminator is used for viewing DNA or RNA bands after electrophoresis. The incubator is used to provide optimum conditions for the growth of microbes whereas calorimeter is used in the measurement of heat generation.

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