Which of the following steps is involved in quantitative analysis?
Correct answer: D. All above steps
- A. Sampling
- B. Conversion of the desired constituent into a suitable form for analysis
- C. Measurement of some physical or chemical property, on which the determination is based
- D. All above steps
Explanation
A complete quantitative analysis involves multiple steps. These include obtaining a representative sample, preparing the sample for measurement (e.g., dissolving, separating), performing the measurement of a property related to the analyte, and finally, calculating and interpreting the results.
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About Analytical Chemistry
Analytical chemistry identifies and measures substances using separation and instrumental methods. Chromatography is studied through stationary and mobile phases, retention and Rf values, while spectroscopy connects absorption of electromagnetic radiation with molecular structure and supports qualitative and quantitative analysis through techniques such as UV-visible and infrared spectroscopy.
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