Investigation of speciation of arsenic in gas condensates by capillary gas chromatography with ICP-MS detection

被引：28

作者：

Bouyssiere, B

Baco, F

Savary, L

Garraud, H

Gallup, DL

Lobinski, R

机构：

[1] CNRS, UMR 5034, F-64053 Pau, France

[2] Inst Francais Petr, CEDI Rene Navarre, Vernaison, France

[3] Inst Francais Petr, F-92506 Rueil Malmaison, France

[4] Ultratrace Anal Aquitaine, F-64053 Pau, France

[5] Unocal Geothermal Technol & Serv, Santa Rosa, CA 95401 USA

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2001年 / 16卷 / 11期

关键词：

D O I：

10.1039/b105765k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

On-line coupling of capillary GC with ICP-MS using the recently commercialized high-temperature interface was developed for the investigation of speciation of arsenic in gas condensates. Arsenic was present as a number of species, the two most abundant species being identified by retention time matching with standards such as triphenylarsine (Ph3As) and triethylarsine (Et3As). The calibration graph, obtained for Ph3As, was linear up to 100 ng mL(-1) and the detection limit was 0.05 pg (as As). The arsenic speciation was found to undergo a slight evolution as a function of sample storage time. Spiking with standards was found to change the equilibrium in the system.

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页码：1329 / 1332

页数：4

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