Resolving power of an Orbitrap mass spectrometer can be increased by allowing more time for acquisition. Two

Question:

Resolving power of an Orbitrap mass spectrometer can be increased by allowing more time for acquisition. Two closely spaced peaks that are resolved in the lower spectrum overlap in the upper spectrum.

a. Measure the full width at half-height of the broad peak in the upper spectrum and the taller of the two peaks in the lower spectrum. Calculate the resolving power (m/z)/(m/z)1/2(m/z)/(m/z)1/2. The selected instrument resolving power was 17 500 17 500 for the upper spectrum and 140 000140 000 for the lower spectrum.

b. The tall peak in the lower spectrum has the composition C15H26NO3+.C15H26NO+3 The smaller peak has the composition C13C13H23N2O3+.13CC13H23N2O+3 Calculate the exact mass for each composition and compare them to m/z m/z in the spectrum.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Quantitative Chemical Analysis

ISBN: 9781319164300

10th Edition

Authors: Daniel C. Harris, Charles A. Lucy

Question Posted: