کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1193714 | 1492257 | 2014 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A simple electrospray interface based on a DC ion carpet A simple electrospray interface based on a DC ion carpet](/preview/png/1193714.png)
• A simple electrospray interface consisting of a long drift region followed by a DC ion carpet is described.
• The performance is optimized by trajectory calculations and experiments.
• Trajectory calculations indicate >90% transmission efficiency for thermalized ions.
• m/z discrimination at the DC ion carpet is minimized.
We describe a simple electrospray interface incorporating a long drift region and a DC ion carpet. The function of the drift region is to thermalize and desolvate the ions. It has a series of ring electrodes supplied with RF and DC voltages, which radially confine and transport ions towards the DC ion carpet. The DC ion carpet consists of a series of concentric rings on a planar printed circuit board, which provide a DC potential gradient that funnels ions through a central aperture. The design and operating parameters were optimized by trajectory calculations and experiments. According to calculations, the transmission efficiency for thermalized ions exceeds 90%, and there is little m/z discrimination at the exit aperture.
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Journal: International Journal of Mass Spectrometry - Volume 371, 1 October 2014, Pages 1–7