Invention Grant
- Patent Title: Multi-element isotopic measurement by direct coupling of a multi-cycle isotachophoresis technique and a mass spectrometry technique
- Patent Title (中): 通过直接耦合多循环等速电泳技术和质谱技术进行多元素同位素测量
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Application No.: US14977584Application Date: 2015-12-21
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Publication No.: US09437411B2Publication Date: 2016-09-06
- Inventor: Frédéric Chartier , Laurent Vio , Anthony Nonell , Hélène Isnard
- Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (CEA)
- Applicant Address: FR Paris
- Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Current Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Current Assignee Address: FR Paris
- Agency: Baker & Hostetler LLP
- Priority: FR1463134 20141222
- Main IPC: G01N27/447
- IPC: G01N27/447 ; G01N27/26 ; B01D57/02 ; H01J49/10 ; H01J49/00 ; B01D59/42 ; G01N27/62
Abstract:
A method for separating electrically charged species contained in a solution by an isotachophoresis method applied in an electrophoresis device, the isotachophoresis method being coupled to isotopic measurement using a mass spectrometer. The method notably comprises a step of stopping the voltage applied to the terminal of the electrophoresis capillary and transient application of a counter-pressure making it possible to utilize the length of the capillary several times and extend the separation distance artificially.
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