Selected reaction monitoring is also called MS/MS because O O it employs two ion

Question

Selected reaction monitoring is also called MS/MS because O O it employs two ion traps it monitors both anions and cations simultaneously it yields two mass spectra of the sample O O simultaneously it uses two detectors it uses consecutive mass filters Selected reaction monitoring exhibits a low level of noise increasing the signal to noise ratio for analytes Choose the best explanation of why a low level of noise is exhibited by selected reaction monitoring. OSelected reaction monitoring exhibits low levels of noise because it only monitors for negative ions which are harder to create than positive ions Selected reaction monitoring exhibits low levels of noise because it is unlikely that any interfering species present in the collision cell will produce fragments of the same m/z as the product ion selected for by the second mass separator Selected reaction monitoring exhibits low levels of noise because it only monitors for MH* peaks and no fragmentation peaks. O Selected reaction monitoring exhibits low levels of noise because it monitors a wide mass range.

Explanation / Answer

Selected reaction monitoring is a method used in tandem mass spectroscopy in which an ion of particular mass is selected in the first stage of a tandem mass spectrometer and an ion product of a fragmentation reaction of the precursor ion is selected in the second mass spectrometer stage for detection.

Answer is it yields two mass spectra of sample simultaneously

**answering only first question due to time and policy constraints

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