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Which method of the following is based on the absorption of electromagnetic radiation in visible, ultraviolet and infrared ranges?

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Which method of the following is based on the absorption of electromagnetic radiation in visible, ultraviolet and infrared ranges?

(a) Colorimetry

(b) Spectrophotometry

(c) Pneumotachometry

(d) Oximetry

The question was posed to me in semester exam.

Question is taken from Pulmonary Function Analysers in section Pulmonary Function Analysers of Biomedical Instrumentation

1 Answer

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Right option is (b) Spectrophotometry

Easiest explanation: Spectrophotometry is the most important of all the instrumental methods of analysis in clinical chemistry. This method is based on the absorption of electromagnetic radiation in the visible, ultraviolet and infrared ranges.

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