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MMLU / Which of the following is (are) characteristic of mass spectrometry?

Problem

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question

Which of the following is (are) characteristic of mass spectrometry?
I. Analyte molecules are converted to gaseous ions.
II. The ions are separated according to their mass-to-charge ratio.
III. In addition to compound identification, mass spectra can be utilized to determine precise isotopic masses and isotopic ratios.

choices

  1. II only
  2. I and II only
  3. I and III only
  4. I, II, and III

subject

college_chemistry

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