Sampling system for use with surface ionization spectroscopy
First Claim
1. A spectroscopic device comprising:
- (a) an external ion source, wherein the external ion source generates ions;
(b) a spectroscopic analyzer; and
(c) a gas ion separator, wherein the gas ion separator increases the number of ions generated by the external ion source introduced into the spectroscopic analyzer.
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Accused Products
Abstract
In various embodiments of the invention, a device permits more efficient collection and transmission of ions produced by the action of a carrier gas containing metastable neutral excited-state species into a mass spectrometer. In one embodiment of the invention, the device incorporates the source for ionization in combination with a jet separator to efficiently remove excess carrier gas while permitting ions to be more efficiently transferred into the vacuum chamber of the mass spectrometer. In an embodiment of the invention, improved collection of ions produced by the carrier gas containing metastable neutral excited-state species at greater distances from between the position of the analyte and the position of the mass spectrometer are enabled.
141 Citations
20 Claims
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1. A spectroscopic device comprising:
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(a) an external ion source, wherein the external ion source generates ions; (b) a spectroscopic analyzer; and (c) a gas ion separator, wherein the gas ion separator increases the number of ions generated by the external ion source introduced into the spectroscopic analyzer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 17, 18, 19, 20)
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12. A method of detecting an analyte comprising:
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(a) providing a device including a spectroscopic analyzer and a gas ion separator; (b) generating an analyte ion, wherein the analyte ion is generated external to the spectroscopic analyzer; and (c) pushing the analyte ion into the spectroscopic analyzer with the gas ion separator, wherein the gas ion separator increases the number of analyte ions generated that are sampled by the spectroscopic analyzer. - View Dependent Claims (13)
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14. A method of detecting an analyte comprising:
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(a) providing a device including a spectroscopic analyzer and a gas ion separator; (b) generating an analyte ion, wherein the analyte ion is generated external to the spectroscopic analyzer; and (c) pulling the analyte ion into the spectroscopic analyzer with the gas ion separator, wherein the gas ion separator increases the number of analyte ions sampled by the spectroscopic analyzer. - View Dependent Claims (15)
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Specification