The relative abundance of ion with a definite m/e value is measured by?
Correct answer: B. Strength of electric current measured
- A. Quantity of fast moving electrons
- B. Strength of electric current measured
- C. High pressure of vapors
- D. Electron gas
Explanation
Ions with a specific m/e value hit the detector and produce an electric current. The magnitude of the current indicates the relative number of ions (abundance). Other options like fast-moving electrons or vapor pressure are not related to measuring ion abundance.
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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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