Flowing atmospheric pressure afterglow
WebApr 13, 2016 · Atmospheric pressure glow discharges have been widely used in the last decade as ion sources in ambient mass spectrometry analyses. Here, an in-house flowing atmospheric pressure afterglow … WebAir flows horizontally at top of the troposphere; horizontal flow is called advection. The air cools until it descends. Where it reaches the ground, it creates a high pressure zone. Air …
Flowing atmospheric pressure afterglow
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WebDec 1, 2024 · A test platform based on FAPA was designed as shown in Fig. 1.FAPA was in upstream of the platform. The pin to capillary FAPA has the same structure as described in a previous study [7].During the study, FAPA worked at discharge voltage 1000 V, discharge current 3 mA and helium flow rate 600 mL min −1.A 100k Ω non-inductive ballast … WebThe flowing atmospheric pressure afterglow (FAPA) AMS source has been shown to be very effective in the analysis of many different compounds.[1] In this study, reactive …
WebOne such ADI-MS source, the flowing atmospheric-pressure afterglow (FAPA), is capable of direct analysis of solids just by aiming the source at the solid surface and sampling the produced ions into a mass spectrometer. However, direct introduction of significant volumes of liquid samples into this source has not been possible, as solvent … WebApr 20, 2024 · The model explains in detail why helium provides a high analytical sensitivity because of high reagent ion formation by both Penning ionization and charge transfer, …
WebFeb 1, 2024 · For instance, our group showed that a helium‑oxygen flowing atmospheric-pressure afterglow (He:O 2-FAPA) source yielded enhanced ion signals for small polar analytes, but compounds with aromatic rings underwent chemical modification to produce pyrylium species.
WebSep 2, 2014 · This study focuses on a specific plasma-based ADI source, the flowing atmospheric pressure afterglow (FAPA) first published by Andrade et al. in 2008 [16, 17]. Several applications and studies of this source have appeared since then: coupling to capillary electrophoresis [ 18 ], to a droplet-on-demand aerosol-generation system [ 19 ], …
WebFeb 1, 2024 · The most widely used plasma-based sources include DART [4,10,13,14], dielectric-barrier discharge ionization (DBDI) , low-temperature plasma (LTP) probe , flowing atmospheric-pressure afterglow (FAPA) [, , , , ], atmospheric-pressure solid analysis probe [, , , , ], and plasma-assisted desorption/ionization (PADI) . Although … ts14g scraper for saleWebJun 8, 2024 · Flowing atmospheric-pressure afterglow plasma gas flow rate The signal dependence on the plasma gas flow rate was also studied ( Fig. 3 b). Regarding the gas-phase analyte injection, 2,6-DTBP, there is a considerable increase (around 11 times) in signal intensity as the plasma gas flow rate rises from 100 to 300 mL min −1 , that is … phillips life safetyWebHere, the atmospheric-pressure glow discharge (APGD) and afterglow of a helium flowing atmospheric-pressure afterglow (FAPA) ionization source were examined by … ts 14 australia pty ltdWebThe purpose of this experimental work is to investigate the production of active species present in an atmospheric pressure DBD afterglow in high gas flow of Nitrogen. The … phillips life careWebMar 2, 2024 · In this work, a field-switching (FS) technique is employed with a flowing atmospheric pressure afterglow (FAPA) source in drift tube ion mobility spectrometry … ts 14 g terex scrapers for saleWebJun 8, 2024 · Flowing atmospheric-pressure afterglow plasma gas flow rate The signal dependence on the plasma gas flow rate was also studied ( Fig. 3 b). Regarding the gas-phase analyte injection, 2,6-DTBP, there is a considerable increase (around 11 times) in … ts 152mm f5.9 refractorWebApr 20, 2024 · We describe the plasma chemistry in a helium flowing atmospheric pressure afterglow (FAPA) used for analytical spectrometry, by means of a quasi-one-dimensional … ts 14b scraper sale