首页>
外国专利>
METHOD OF SEPARATING DIFFERENT IONS HAVING SIMILAR MASS TO CHARGE RATIOS
METHOD OF SEPARATING DIFFERENT IONS HAVING SIMILAR MASS TO CHARGE RATIOS
展开▼
机译:分离具有相似质量的离子的比率的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of filtering ions (16) is disclosed comprising: providing an ion filter (6) having an ion entrance, an ion exit and a plurality of electrodes (18); applying an AC and/or RF voltage to at least a first electrode so as to generate a pseudo-potential barrier; and urging ions towards the pseudo-potential barrier as they travel from the entrance to the exit whilst maintaining the ion filter (6) at a pressure such that first ions are repelled by the pseudo-potential barrier and so are transmitted through the filter to said exit, whereas second ions having substantially the same mass to charge ratio as the first ions but a lower mass are not capable of being repelled by the pseudo-potential barrier and reaching said exit.
展开▼