Atmospheric Pressure Corona Discharge Ionisation and Ion Mobility Spectrometry/Mass Spectrometry study of the negative corona discharge in high purity oxygen and oxygen/nitrogen mixtures

Sabo, Martin; Páleník, Ján; Kucera, M; Han, Haiyan; Wang, Hongmei; Chu, Yannan; Matejčík, Štefan

doi:10.1016/j.ijms.2010.03.004

Cited by 42 publications

(34 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in 63 Ni source, the reactant ions are dominated by the ions with m/z 32, which is identified as O 2 − and is consistent with the previous study by Waltman et al 41 The ions at m/z 60 were also observed in negative corona discharge source. 42 presented in low ppmv level through the use of 18 O labeled oxygen technique. 43 In our system, the measured concentration of CO 2 in purified air was about 300 ppm by electron impact ionization time-of-flight mass spectrometry, 44 so the ions at m/ z 60 in DANP and UVRI sources are assigned to CO 3 − .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Dopant-Assisted Negative Photoionization Ion Mobility Spectrometry for Sensitive Detection of Explosives

et al. 2012

View full text Add to dashboard Cite

Ion mobility spectrometry (IMS) is a key trace detection technique for explosives and the development of a simple, stable, and efficient nonradioactive ionization source is highly demanded. A dopant-assisted negative photoionization (DANP) source has been developed for IMS, which uses a commercial VUV krypton lamp to ionize acetone as the source of electrons to produce negative reactant ions in air. With 20 ppm of acetone as the dopant, a stable current of reactant ions of 1.35 nA was achieved. The reactant ions were identified to be CO 3by atmospheric pressure time-of-flight mass spectrometry, while the reactant ions in 63 Ni source were O 2. Finally, its capabilities for detection of common explosives including ammonium nitrate fuel oil (ANFO), 2,4,6-trinitrotoluene (TNT), N-nitrobis(2-hydroxyethyl)amine dinitrate (DINA), and pentaerythritol tetranitrate (PETN) were evaluated, and the limits of detection of 10 pg (ANFO), 80 pg (TNT), and 100 pg (DINA) with a linear range of 2 orders of magnitude were achieved. The time-of-flight mass spectra obtained with use of DANP source clearly indicated that PETN and DINA can be directly ionized by the ion-association reaction of CO 3 − to form PETN·CO 3 − and DINA·CO 3 − adduct ions, which result in good sensitivity for the DANP source. The excellent stability, good sensitivity, and especially the better separation between the reactant and product ion peaks make the DANP a potential nonradioactive ionization source for IMS.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Dopant-Assisted Negative Photoionization Ion Mobility Spectrometry for Sensitive Detection of Explosives

et al. 2012

View full text Add to dashboard Cite

show abstract

“…The IMS/MS ( Figure 1a) and APCI/MS (Figure 1b) instruments equipped with point to plane corona discharge ion source were described in our previous work [14]. In attempt to reduce the penetration of the neutrals species and radicals formed in the corona discharge into the drift region we used single flow IMS system with gas outlet behind the corona discharge (reverse flow corona discharge).…”

Section: Methodsmentioning

confidence: 99%

Positive corona discharge ion source with IMS/MS to detect impurities in high purity Nitrogen

Sabo

Klas²,

Wang³

et al. 2011

Eur. Phys. J. Appl. Phys.

View full text Add to dashboard Cite

“…Within this IMS peak we have detected also ions m/z 60 Da, which we assigned to N 2 O 2 − . We assumed that this ion originates from following process at atmospheric pressure (4) [26] …”

Section: Rdx Detection With Doping By CCLmentioning

confidence: 99%

The study of thermal decomposition of RDX by corona discharge-ion mobility spectrometry-mass spectrometry

Lichvanová

Sabo

Matejčík

2015

Int. J. Ion Mobil. Spec.

Self Cite

View full text Add to dashboard Cite

In this study we have examined the formation of ions from hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) sample evaporated at 473 K in reactions with reactant ions (RI) produced in negative corona discharge (CD). The ions have been analysed and detected by ion mobility spectrometry coupled to orthogonal acceleration time of flight spectrometer (IMS-oaTOF). The chemical ionisation was carried out byin CD operated in zero air in the reverse gas flow mode at elevated temperatures 438 K and by Cl − (H 2 O) n (n=0,1,2) at 332 K. In case of 332 K, the RI were prepared by admixture of carbon tetrachloride (CCl 4 -dopant gas) in order to enhance sensitivity of RDX.

show abstract

Atmospheric Pressure Corona Discharge Ionisation and Ion Mobility Spectrometry/Mass Spectrometry study of the negative corona discharge in high purity oxygen and oxygen/nitrogen mixtures

Cited by 42 publications

References 18 publications

Dopant-Assisted Negative Photoionization Ion Mobility Spectrometry for Sensitive Detection of Explosives

Dopant-Assisted Negative Photoionization Ion Mobility Spectrometry for Sensitive Detection of Explosives

Positive corona discharge ion source with IMS/MS to detect impurities in high purity Nitrogen

The study of thermal decomposition of RDX by corona discharge-ion mobility spectrometry-mass spectrometry

Contact Info

Product

Resources

About