KINETICS OF RELEASE OF CARBON AND CARBON-MONOXIDE FROM A GRAPHITE-FURNACE INVESTIGATED BY ELECTROTHERMAL VAPORIZATION INDUCTIVELY-COUPLED PLASMA-MASS SPECTROMETRY

被引：16

作者：

GILMUTDINOV, AK

STAROVEROV, AE

GREGOIRE, DC

STURGEON, RE

CHAKRABARTI, CL

机构：

[1] NATL RES COUNCIL CANADA,INST ENVIRONM RES & TECHNOL,OTTAWA K1A 0R9,ON,CANADA

[2] UNIV KAZAN,DEPT PHYS,KAZAN 420008,RUSSIA

[3] GEOL SURVEY CANADA,OTTAWA K1A 0E8,ON,CANADA

[4] CARLETON UNIV,DEPT CHEM,OTTAWA K1S 5B6,ON,CANADA

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1994年 / 49卷 / 10期

关键词：

D O I：

10.1016/0584-8547(94)80087-1

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Detection of carbon-containing molecules released during the high temperature heating of a dry, unloaded HGA-type graphite furnace (GF) has been undertaken by interfacing the GF to an ICP-MS. Desorption of O-2 (as CO) chemisorbed onto the GF surface can be discriminated from that produced as a result of continuous oxidation of the surface by gaseous O-2 impurity. Because plasma-induced dissociation of CO is negligible, signals arising from C do not have to be deconvoluted from those of CO. To a first approximation, the formation of C and CO can be treated as independent processes. A theoretical analysis of the transient experimental signals is presented.

引用

页码：1007 / 1026

页数：20

共 32 条

[1] THE ROLE OF THE SURFACE COMPLEX IN THE KINETICS OF THE REACTION OF OXYGEN WITH CARBON [J].