| 摘要 |
Apparatuses and methods for producing ions from chemical species analyzing chemical species. In one embodiment, an apparatus includes a first ion source assembly that produces a first sample flow and a second ion source assembly that produces a second sample flow. The first and second ion source assemblies operate substantially at atmospheric pressure, and the second ion source assembly is different from the first ion source assembly. The apparatus also includes a separation member positioned at least partially between the first and second ion source assemblies, the separation member being shaped and sized to reduce interference between the first sample flow and the second ion source assembly and between the second sample flow and the first ion source assembly. In one embodiment, the first ion source assembly can include an electrospray ion source assembly and the second ion source assembly can include an atmospheric pressure chemical ionization source assembly.
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