CHARACTERIZATION OF NEAR-INFRARED ATOMIC EMISSION FROM A RADIOFREQUENCY PLASMA FOR SELECTIVE DETECTION IN CAPILLARY GAS-CHROMATOGRAPHY

被引：37

作者：

SKELTON, RJ ^{[1
]}

MARKIDES, KE ^{[1
]}

LEE, ML ^{[1
]}

FARNSWORTH, PB ^{[1
]}

机构：

[1] BRIGHAM YOUNG UNIV,DEPT CHEM,PROVO,UT 84602

来源：

APPLIED SPECTROSCOPY | 1990年 / 44卷 / 05期

关键词：

D O I：

10.1366/0003702904086993

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A radio-frequency plasma source has been characterized for use as an element-selective detector with capillary gas chromatography using atomic emission in the near-infrared region of the spectrum. With selected compounds introduced at rates similar to those encountered during a chromatographic run, the performance of the plasma has been characterized as a function of several interdependent variables, including plasma makeup gas flow, electrode spacing, and applied power. These settings have been optimized, and detection limits for several nonmetallic elements determined. Detection limits range from 0.2 to 50 pg/s.

引用

页码：853 / 857

页数：5

共 25 条

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