0181190 - UFCH-W 20010104 RIV US eng J - Článek v odborném periodiku
Španěl, Patrik - Smith, D.
Quantitative Selected Ion Flow Tube Mass Spectrometry: The Influence of Ionic Diffusion and Mass Discrimination.
Journal of the American Society for Mass Spectrometry. Roč. 12, - (2001), s. 863-872. ISSN 1044-0305. E-ISSN 1879-1123
Grant CEP: GA ČR GA203/00/0632
Grant ostatní: EPSRC(GB) GR/M89195/01
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: SIFT-MS * diffusion * mass spectrometry
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 3.445, rok: 2001

Quantification of trace gases by selected ion flow tube mass spectrometry is achieved from the ratio of the total count rate of product ions to that for precursor ions. Precursor ions are converted to heavier product ions that diffuse more slowly and thus are more efficiently transported to the mass spectrometer. Discrimination occurs against ions of large mass-to-charge ratio in quadrupole mass spectrometers. Both these effects can be accounted for to increase the accuracy of SIFT-MS quantification.
Trvalý link: http://hdl.handle.net/11104/0077779