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Speciation using high resolution and MC-ICP-MS

High-resolution sector-field ICP-MS (SF-ICP-MS), be it double or single focusing, offers superior detection limits, and more precise quantitative and isotope ratio results when measurements are performed in low-resolution mode due to the flat-top spectral peaks. Use of higher mass resolution (up to 10000) results in sharper spectral peaks and resolves polyatomic interferences from the target element signals. The result is improved detection capability for certain elements compared to quadrupole ICP-MS. Prominent examples of elements where measurements with SF-ICP-MS are beneficial are Fe, V, Cr, As and Se.  [Pg.310]

Matrix interference in speciation analysis is generally reduced because of the sample preparation step and the chromatographic separation employed. Nevertheless, there are cases in [Pg.310]

Kollensperger etal. undertook arsenic speciation of six arsenic species [ As(lll), As(V), MMA, DMA, AB and AC] using ion chromatography or CE coupled with SF-ICP-MS in soil pore water and soil water extracts. Low mass resolution R= 300) was applied, and the major advance of the technique was the improvement of detection limits by factor of 1000 compared to quadrupole ICP-MS. [Pg.311]

Mercury speciation with CE coupled to quadrupole ICP-MS and SF-ICP-MS was performed by Silva da Rocha et for the separation and determination of mercury species (as Hg-cysteine complexes) and detection limits were significantly improved when using SF-ICP-MS. [Pg.311]

Inductively Coupled Plasma Mass Spectrometry Handbook [Pg.312]


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And resolution

High resolution ICP

ICP-MS

MC-ICP

MCSS

MS, high-resolution

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