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Application of Dual Laser Ionization to Trace Analysis of Sodium in A Flame
Author(s) -
Lin KingChuen,
Duh YinShing,
Sheu TiChing,
Hsu TzuJeng
Publication year - 1988
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198800026
Subject(s) - chemistry , ionization , laser , detection limit , analytical chemistry (journal) , analyte , atmospheric pressure laser ionization , excitation , atomic physics , photoionization , optics , chromatography , ion , physics , organic chemistry , electrical engineering , engineering
Dual laser ionization (DLI) is a technique which can be used to detect trace elements in a flame by ionizing the analyte via a dual‐laser stepwise excitation. As a powerful method for flame diagnostics, DLI can detect trace amount of Na at a concentration of ppb (ng/mL), more sensitive by two orders of magnitude than laser‐enhanced ionization (LEI), in which only single laser is used. To demonstrate its potential in trace analysis, we compare the detection limit of DLI for Na with other methods utilizing LEI, atomic emission and laser atomic absorption.