Sampling system for use with surface ionization spectroscopy
First Claim
1. A device for analyzing an analyte comprising:
- a plurality of ionization sources;
a plurality of flexible tubes, where each tube has a proximal end and a distal end, where the proximal end of the plurality of tubes is positioned at or near the analyte, where the distal end of the plurality of tubes combine into a single tube; and
a spectrometer, where the single tube connects with the spectrometer.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention provides for efficient collection of analyte ions and neutral molecules from surfaces for their subsequent analysis with spectrometry. In an embodiment of the invention, a ‘multiple desorption ionization source’ includes a tube which can contain ions for subsequent sampling within a defined spatial resolution from desorption ionization at or near atmospheric pressures. In an embodiment, electrostatic fields are used to direct ions a plurality of tubes positioned in close proximity to the surface of the sample being analyzed. In an embodiment of the present invention, either narrow inside diameter capillary tubes or wide diameter tubes can be used in combination with a vacuum inlet to draw ions and neutrals into the spectrometer for analysis. In an embodiment of the invention, a dopant is introduced into a tube to analyze the sample. In an embodiment of the invention, a plurality of ionization sources is used to analyze the sample.
128 Citations
19 Claims
-
1. A device for analyzing an analyte comprising:
-
a plurality of ionization sources; a plurality of flexible tubes, where each tube has a proximal end and a distal end, where the proximal end of the plurality of tubes is positioned at or near the analyte, where the distal end of the plurality of tubes combine into a single tube; and a spectrometer, where the single tube connects with the spectrometer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A system of analyzing an analyte comprising:
-
(a) a sample holder; (b) a spectrometer; (c) a plurality of ionization sources; and (d) a plurality of flexible tubes positioned at or near the sample holder, where each tube has a proximal end and a distal end, where the proximal end of the plurality of tubes is positioned at or near the analyte, where the distal end of the plurality of tubes combine into a single tube which enters the spectrometer. - View Dependent Claims (18, 19)
-
Specification