Method and apparatus for performing ion mobility spectrometry
First Claim
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1. A method for performing ion mobility spectrometry, comprising:
- receiving a sample for analysis;
ionizing the sample;
injecting the ionized sample into a laminar gas flow;
wherein an electric field crosses the laminar gas flow so that the laminar gas flow and the electric field combine to spatially separate ions of the sample based on ion mobility and so that the spatially separated ions contact different elements of an electrometer array, reading an output of the electrometer array; and
analyzing the output to determine a chemical composition of the sample.
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Abstract
One embodiment of the present invention provides a system for performing ion or particle mobility spectrometry. The system operates by first receiving a sample for analysis. Next, the system ionizes the sample and injects the ionized sample into a laminar gas flow. An electric field crosses the laminar gas flow so that the laminar gas flow and the electric field combine to spatially separate ions of the analytes based on ion mobility and so that the spatially separated ions contact different elements of an electrometer array. Next, the system analyzes the output of the electrometer array to determine the mobility of the analytes.
20 Citations
30 Claims
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1. A method for performing ion mobility spectrometry, comprising:
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receiving a sample for analysis;
ionizing the sample;
injecting the ionized sample into a laminar gas flow;
wherein an electric field crosses the laminar gas flow so that the laminar gas flow and the electric field combine to spatially separate ions of the sample based on ion mobility and so that the spatially separated ions contact different elements of an electrometer array, reading an output of the electrometer array; and
analyzing the output to determine a chemical composition of the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for performing ion mobility spectrometry, comprising:
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a receiving mechanism configured to receive a sample for analysis;
an ionizing mechanism configured to ionize the sample;
an injecting mechanism configured to inject the ionized sample into a laminar gas flow;
wherein an electric field crosses the laminar gas flow so that the laminar gas flow and the electric field combine to spatially separate ions of the sample based on ion mobility and so that the spatially separated ions contact different elements of an electrometer array, a reading mechanism configured to read an output of the electrometer array; and
an analyzing mechanism configured to analyze the output to determine a chemical composition of the sample. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A means for performing ion mobility spectrometry, comprising:
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a receiving means for receiving a sample for analysis;
an injecting means for injecting the ionized sample into a laminar gas flow;
wherein an electric field crosses the laminar gas flow so that the laminar gas flow and the electric field combine to spatially separate ions of the sample based on ion mobility and so that the spatially separated ions contact different elements of an electrometer array, a reading means for reading an output of the electrometer array, and an analyzing means for analyzing the output to determine a chemical composition of the sample. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification