| Autor: |
Milstein, Lisa S., Waggoner, Joseph W., Sutton, Karen L., Caruso, Joseph A. |
| Zdroj: |
Applied Spectroscopy; September 2000, Vol. 54 Issue: 9 p1286-1290, 5p |
| Abstrakt: |
Quantitative and qualitative mass spectrometric results have been obtained for organotin compounds introduced into a mixed gas He/Ar low-power/reduced-pressure (LP/RP) inductively coupled plasma (ICP). Molecular fragmentation of 10 mg kg−1of tetraethyltin (TET), introduced by gas chromatography (GC), with respect to pressure and mixed gas composition of the LP/RP-ICP was observed. Detection limits for the organotin compounds introduced into an LP/RP-He/Ar ICP at the pressure producing the optimum analyte signal were in the low picogram range. The source demonstrated “tunable” fragmentation with variation in the helium/argon mixed gas ratio. In addition, tunable fragmentation with pressure variations similar to that achieved previously with helium radio-frequency glow discharge (He-rf-GD) was observed with the LP/RP-He ICP. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
