Untersuchung der Flammenemission von Metallhalogeniden und deren Nutzung zur Analytik der Halogene

Marquardt, D.; Stößer, Reinhard; Henrion, Günter

doi:10.1016/0584-8547(81)80066-3

Cited by 8 publications

(1 citation statement)

References 43 publications

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“…Enhanced emissions of copper halides arise from a higher volatility and consequent production of excited CuOH, CuO and CuH species, therefore pseudohalides give also a false positive test. To circumvent these problems either other diatomic molecules like InCl were utilized in combination with flame spectroscopy [28,29] or other approaches as laser-induced fluorescence in a graphite furnance [30][31][32] or molecular emission cavity analysis (MECA) [27,33,34].…”

Section: Resultsmentioning

confidence: 99%

Element-specific determination of chlorine in gases by Laser-Induced-Breakdown-Spectroscopy (LIBS)

Haisch

Nießner

Matveev

et al. 1996

Fresenius J Anal Chem

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An experimental set-up for the detection of elemental chlorine in chlorinated hydrocarbons (CHCs) is described based on a miniaturized system, which could be used for on-line monitoring of chlorinated compounds. With an optimized time-resolved detection chlorine from CHCs like CCl(4) can be determined by Laser-Induced-Breakdown-Spectroscopy (LIBS) with microg/g-detection limits in the gas phase. The application of a miniaturized Nd : YAG laser resulted only in a minor loss in performance, hence it could be used for designing a rugged and small on-line sensor. In addition, preliminary results for the detection of chlorine via the formation of CuCl in the plasma formed by focussing the laser on a copper surface are reported. Utilizing the luminescence of the CuCl D-system at 440 nm, a tenfold improvement in the detection limits was obtained. It appears that the formation of "ad hoc" selected, small molecules in a laser plasma could be a promising alternative for the selective and sensitive analysis of gaseous chlorinated and other species.

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