Processes taking place in the graphite tube: Anion and matrix effects in atomic absorption spectrometry. II. Determination of mercury

A. Halász, K. Polyák, E. Gegus

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The atomic-absorption behaviour of different mercury compounds in the graphite tube was investigated. It was established that in the case of water-soluble volatile mercury compounds (nitrate, chloride) there is a considerable mercury loss even during the drying of the drop. The mercury can be determined, however, in the form of colloidal mercury sulphide at ca. 200° C and with atomization at a relatively low temperature. Some interferences limit the use of the method in practice (compounds evaporating together with the mercury, presence of other metals producing sulphide precipitates) but the use of mercury dithizonate overcomes these limitations. The method was applied for determination of the mercury content of waste water and waste water sludge.

Original languageEnglish
Pages (from-to)229-238
Number of pages10
JournalMikrochimica Acta
Volume76
Issue number3-4
DOIs
Publication statusPublished - May 1981

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Atomic absorption spectrometry
Graphite
Mercury
Anions
Mercury Compounds
Sulfides
Wastewater
Atomization
Nitrates
Chlorides
Precipitates
Drying
Metals
Water

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Processes taking place in the graphite tube : Anion and matrix effects in atomic absorption spectrometry. II. Determination of mercury. / Halász, A.; Polyák, K.; Gegus, E.

In: Mikrochimica Acta, Vol. 76, No. 3-4, 05.1981, p. 229-238.

Research output: Contribution to journalArticle

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