Comparative performance of tripole and quadrupole ion guides at elevated pressure |
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Authors: | Misharin Alexander S Moskovets Eugene Gamage Chaminda M Doroshenko Vladimir M Vilkov Andrey N |
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Institution: | MassTech Inc, Columbia, MD 21046, USA. alexander.misharin@apmaldi.com |
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Abstract: | This study presents the first practical demonstration of an operational tripole ion guide. The transmission was measured for both the tripole and quadrupole ion guides at 1 Torr pressure. It was found that the quadrupole provides 2.5-3 times better ion transmission efficiency. Two different electric schemes for driving the tripole were tested. Similar transmission characteristics were obtained in both cases. A brief analysis of the tripole performance and ways to improve it is presented. |
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