Title

Analysis Of Oxidizer Salt Mixtures By Electrospray Ionization Mass Spectrometry

Abstract

Binary aqueous mixtures of NaNO3, KNO3 and NaClO 4 oxidizers were analyzed using electrospray ionization mass spectrometry. Sodium nitrate solutions were observed to form doubly charged clusters of the type [(NaNO3)n2Na]2+ and [(NaNO3)n2NO3]2-, where n = 11, 13, 15, etc., in addition to singly charged cluster ions that have been reported previously. The identity of the doubly charged clusters was determined by tandem mass spectrometry. Two-component NaNO3-KNO3 salt solutions were observed to form cluster ions of the type [(NaNO 3)i(KNO3)jNO3] in the negative ion mode and [(NaNO3)i(KNO3) jNa]+ and [(NaNO3)i(KNO 3)jK]+ in the positive ion mode, where i + j = 1, 2, 3 . . . 10. Two-component solutions of KNO3-NaClO4 formed ions of the type [(KNO3)i(NaClO4) j(KClO4)k(NaNO3)lK] + and [(KNO3)i(NaClO4) j(KClO4)k(NaNO3)lNa] + in the positive ion mode, where i + j + k + l = 1, 2, 3 . . . 10. Similar clusters containing excess nitrate and perchlorate to provide the charge are formed in the negative ion mode. In each case, the maximum number of spectral lines for a cluster of size n can be calculated as the number of combinations of nth order (where n = i + j) of N different cation-anion pairs taken with replication and without regard for the ordering of the N cation-anion pairs. The actual number of lines observed may be reduced due to degeneracy of nominal m/z values for some ions. Copyright © 2006 John Wiley & Sons, Ltd.

Publication Date

2-13-2006

Publication Title

Rapid Communications in Mass Spectrometry

Volume

20

Issue

3

Number of Pages

427-432

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/rcm.2298

Socpus ID

32044472484 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/32044472484

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