发明授权
- 专利标题： Multi-element isotopic measurement by direct coupling of a multi-cycle isotachophoresis technique and a mass spectrometry technique
- 专利标题（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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申请号： US14977584申请日： 2015-12-21
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公开(公告)号： US09437411B2公开(公告)日： 2016-09-06
- 发明人: Frédéric Chartier , Laurent Vio , Anthony Nonell , Hélène Isnard
- 申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (CEA)
- 申请人地址： FR Paris
- 专利权人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- 当前专利权人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- 当前专利权人地址： FR Paris
- 代理机构： Baker & Hostetler LLP
- 优先权： FR1463134 20141222
- 主分类号： G01N27/447
- IPC分类号： G01N27/447 ; G01N27/26 ; B01D57/02 ; H01J49/10 ; H01J49/00 ; B01D59/42 ; G01N27/62
摘要：
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.