Patent · US Expired

Photo-ionization ion mobility spectrometry

US5968837A · kind A · utility

30Cited by

6References

9Claims

0Family size

Assignee

Bruker Saxonia Analytik GmbH · DE

Inventors

Hans-Rudiger Doring · Leipzig, DE
Gerd Arnold · Leipzig, DE
Joachim Adler · Sankt Gallen, CH
Thomas Robel · Leipzig, DE
Jurgen Riemenschneider · Leipzig, DE

Key dates

Filing date	Mar 11, 1997
Grant date	Oct 19, 1999
Priority date	—
Expiry date	Mar 11, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/24
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method for photo-ionization ion mobility spectrometry, a reagent gas is added, in particular an aromatic compound, which has a large ionization cross section in the range of ionizing VUV radiation, but a low probability for the formation of protonated quasi-molecular ions. In this way, the detection of only weakly proton affine substances is also amplified or even made possible at all, and also the detection of electronegative substances in a negative operating mode is improved. Preferred reagent gases are benzene, toluene and xylene. FIG. 1

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.