Abstract
Trace level quantities of some nonmetallic elements are determined by coupling graphite rod electrothermal vaporization with a helium microwave-induced plasma. Microliter liquid samples of chlorides, bromides, iodides, sulfides, and ammonium nitrogen have been introduced into a grooved graphite rod, where they were dried, ashed, and vaporized into the plasma. The analytical performance of the GRV/He-MIP was found to be an excellent excitation source for dry analyte vapors. The graphite rod vaporization device is well suited for sample introduction for a low-power microwave-induced plasma. Analytical calibration curves were obtained that have linearities between 2.5 to 5 orders of magnitude. Detection limits of the technique for 10-μL aqueous sample solutions are reported in the lower nanogram region. The common anions and cations did not show significant interference effects on the determination of traces of these nonmetals.
PDF Article
More Like This
Quantitative hydrogen analysis of zircaloy-4 in laser-induced breakdown spectroscopy with ambient helium gas
Muliadi Ramli, Ken-ichi Fukumoto, Hideaki Niki, Syahrun Nur Abdulmadjid, Nasrullah Idris, Tadashi Maruyama, Kiichiro Kagawa, May On Tjia, Marincan Pardede, Koo Hendrik Kurniawan, Rinda Hedwig, Zener Sukra Lie, Tjung Jie Lie, and Davy Putra Kurniawan
Appl. Opt. 46(34) 8298-8304 (2007)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription