✦ LIBER ✦

Fourier transform ion cyclotron mass spectrometry using pseudo-ramdom-noise excitation

✍ Scribed by Alan G. Marshall; Tao-Chin L. Wang; Toni L. Ricca

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 354 KB
Volume: 108
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(84)80367-x

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✦ Synopsis

Broad-band frequency cscitation in Fourier transform mass spcctrometry (IT/MS) has previously been achieved via impulse or frequencyswecp time-domain waveforms. In this paper, WC introduce pseudo-random-noise esciration based on shift register maximal-length sequences. Esperimcntal FT/hlS specrra of pcrfluorowibuIylamine exited by pseudo-random noise and frequency-sweep excitation are compared. Compared to random-noise escimtion, pseudo-random escitalion has the advantage of phasecohcrcnce from sczm to scan, and thus OUOWS for rapid :imcdomain signal averaging.

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