CO2-laser extraction-static mass spectrometry analysis of ultra-low concentrations of nitrogen in silicates

被引：28

作者：

Humbert, F

Libourel, G

France-Lanord, C

Zimmermann, L

Marty, B

机构：

[1] Ctr Rech Petrog & Geochim, F-54501 Vandoeuvre Nancy, France

[2] Ecole Natl Super Geol, F-54501 Vandoeuvre Nancy, France

来源：

GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS | 2000年 / 24卷 / 02期

关键词：

nitrogen; silicates; laser extraction; mass spectrometry;

D O I：

10.1111/j.1751-908X.2000.tb00777.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A new installation for the analysis of picomole quantities of nitrogen has been designed and constructed. It permits the simultaneous analysis of N and rare gases extracted from silicates by heating. The extraction procedure involves the use of a CO2 laser as a heater, and the analysis is made by static mass spectrometry using a high sensitivity high resolution mass spectrometer. Procedural blanks of similar to 2 picomoles N-2 (60 picogram N) allow us to analyse routinely N in mg-sized samples such as mantle-derived and meteoritic minerals, and Lunar soil grains.

引用

页码：255 / 260

页数：6

共 15 条

[1] PREPARATION OF SUB-NANOMOLE QUANTITIES OF NITROGEN GAS FOR STABLE ISOTOPIC ANALYSIS [J].