| 摘要 |
The invention provides a device for introducing ions into the primary ion path of a mass spectrometry system. In general, the device contains an electrical lens having a primary ion passageway and a secondary ion passageway that merges with the primary ion passageway. In certain embodiments, the electrical lens contains a first part and a second part that, together, form the primary ion passageway. The first part of the lens may contain the secondary ion passageway.
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