Determination of mercury in organic solvents and gas condensates by μflow-injection - inductively coupled plasma mass spectrometry using a modified total consumption micronebulizer fitted with single pass spray chamber - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Spectrochimica Acta Part B: Atomic Spectroscopy Année : 2006

Determination of mercury in organic solvents and gas condensates by μflow-injection - inductively coupled plasma mass spectrometry using a modified total consumption micronebulizer fitted with single pass spray chamber

Résumé

A high-throughput flow-injection - inductively coupled plasma mass spectrometry (ICP MS) analytical method was developed for the determination of mercury in gas condensates and carbon-rich solvents. The sample (undiluted or diluted 10-fold) was introduced via a modified total consumption micronebulizer working at a flow rate of 30 μl min- 1 and fitted with a singlepass spray chamber. This low flow rate and the addition of oxygen (70 ml min- 1) assured the plasma stability and reduced the carbon build-up on the interface and on ion lenses. A limit of detection of 0.5 ng g- 1 (2.5 μl sample) was obtained owing to the reduction of dead volume and sample dispersion (peak-width was 3 s at half-height) in the liquid pass of the nebulizer. The elimination of the memory effect reduced the washout time down to 30 s which resulted in a throughput of ca. 60 h- 1. The method was validated by the analysis of 3 gas condensates by cold vapour atomic absorption spectrometry. © 2006.

Dates et versions

hal-01560778 , version 1 (11-07-2017)

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Citer

Brice Bouyssière, Y.N. Ordóñez, C.-P. Lienemann, Dirk Schaumlöffel, Ryszard Lobinski. Determination of mercury in organic solvents and gas condensates by μflow-injection - inductively coupled plasma mass spectrometry using a modified total consumption micronebulizer fitted with single pass spray chamber. Spectrochimica Acta Part B: Atomic Spectroscopy, 2006, 61 (9), pp.1063--1068. ⟨10.1016/j.sab.2006.10.004⟩. ⟨hal-01560778⟩
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