| Type of MS | Price range | Size | Resol. | Qunt | Mass Range |
Feature |
|---|---|---|---|---|---|---|
| Multi-Turn | up to $200k | ◎ | ◎ | ○ | ○ | Compact, High Reso |
| Quadlupole | $50k to 150k | ◎ | × | ◎ | × | Compact, High Reso |
| Mag. Sector | $200k to 600k | × | ◎ | ◎ | × | Bench-top, Quant. |
| Ion-Trap | $200k to 400k | ◎ | × | △ | ○ | Bench-top, MS/MS |
| FT-ICR | $1M to 2M | ×× | ◎◎ | × | ○ | Ultra High Resolution |
| IMS | $50k to 200k | ◎ | ×× | × | × | Portable |
| TOF | $200k to 800k | △ | ◎ | × | ◎ | High mass, High Reso |
Key: ◎ Best ○ Good △ OK × Not Recommended ×× Worst
There are four orbiting electrodes and two injection/ejection electrodes on a palm-sized optics bench. The Ion source gives kinetic-energy for orbiting motion in the infinite loop.
Injection and ejection electrodes are synchronized with Ion source pulsing triggering. Injection electrode has to be in the on state while ions enter the analyzer, then has to be turned off before first ion (smallest ion) returns to it. Orbiting electrodes are constant, so orbiting ion can be held until ejection electrode is ON.


