2018
DOI: 10.3390/s18124252
|View full text |Cite
|
Sign up to set email alerts
|

Evidence of Reactivity in the Membrane for the Unstable Monochloramine during MIMS Analysis

Abstract: Membrane Inlet Mass Spectrometry (MIMS) was used to analyze monochloramine solutions (NH2Cl) and ammonia solutions in a compact FTICR. Chemical ionization enables identification and quantification of the products present in the permeate. The responses of protonated monochloramine and ammonium increase linearly with the solution concentration. The enrichments were respectively 1.2 and 5.5. Pervaporation is dependent on pH and only the basic form of ammonia NH3 pervaporates through the membrane. Unexpectedly, th… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

2
5
0

Year Published

2019
2019
2024
2024

Publication Types

Select...
4
1

Relationship

2
3

Authors

Journals

citations
Cited by 5 publications
(7 citation statements)
references
References 33 publications
2
5
0
Order By: Relevance
“…Figure 3 shows the mass spectrum of the NH 2 Cl aqueous solution at a concentration of 10 mg L −1 (as Cl 2 ). This spectrum agreed well with that reported by Louarn et al [11]. The dominant peak at m/z 19.018 represents the H 3 O + reagent ion signal, and the secondary peak at m/z 121.102 represents the C 6 H 3 (CH 3 ) 3 H + protonated trimethylbenzene.…”
Section: Monochloramine Analysis In Watersupporting
confidence: 91%
See 4 more Smart Citations
“…Figure 3 shows the mass spectrum of the NH 2 Cl aqueous solution at a concentration of 10 mg L −1 (as Cl 2 ). This spectrum agreed well with that reported by Louarn et al [11]. The dominant peak at m/z 19.018 represents the H 3 O + reagent ion signal, and the secondary peak at m/z 121.102 represents the C 6 H 3 (CH 3 ) 3 H + protonated trimethylbenzene.…”
Section: Monochloramine Analysis In Watersupporting
confidence: 91%
“…This suggests that the detected NH 4 + resulted from decomposition of monochloramine into ammonia inside the MIMS instrument. A similar conclusion was reported recently by Louarn et al, who suggested that this decomposition takes place across the membrane, since the low pressure inside the mass spectrometer source prevents adsorption and degradation reactions downstream of the membrane [11]. Monochloramine decomposition on membrane has never been reported in other studies.…”
Section: Monochloramine Analysis In Watersupporting
confidence: 83%
See 3 more Smart Citations