Desorption/ionization of acrylamide in aqueous solutions in atmospheric pressure air using a microdischarge with vortex focusing of ions

Autor:	V. V. Pervukhin, D. G. Sheven
Rok vydání:	2014
Předmět:	Detection limit Glow discharge Aqueous solution Materials science Physics and Astronomy (miscellaneous) Atmospheric pressure Ionization Desorption Analytical chemistry Vortex Ion
Zdroj:	Technical Physics. 59:1300-1309
ISSN:	1090-6525 1063-7842
DOI:	10.1134/s1063784214090217
Popis:	A method of desorption/ionization in a microdischarge with ion vortex focusing (vortex focusing microdischarge, VFM) is suggested. A glow microdischarge is initiated in an air flow, and resulting ions act on the surface of interest. As a model compound, an aqueous solution of acrylamide is taken. Desorption/ionization taking place under atmospheric pressure is followed by the mass-spectrometric identification of the ions. The operating parameters of the VFM system are studied and optimized. Upon optimization of the system, the detection limit of acrylamide trace amounts in aqueous solutions is determined using the suggested method of desorption/ionization and analyte ion focusing with a vortex (swirling) jet. The acrylamide detection limit is found to be 2 × 10−3 g/L.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1c685097735604fa9372ae6cd7bf7401 https://doi.org/10.1134/s1063784214090217 Zobrazit plný text záznamu Plný text ve formátu PDF