✦ LIBER ✦

Sensitive speciation analysis of lead ion environmental waters by capillary gas chromatography microwave-induced plasma atomic emission spectrometry

✍ Scribed by Ryszard Łobiński; Freddy C. Adams

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 962 KB
Volume: 262
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)80066-g

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✦ Synopsis

Optlmlzatlon of mmowave-Induced plasma atotmc emlsslon detectlon for the speclatlon of organolead compounds m water samples 1s described The absolute detection hnuts achazved vary from 0 02 to 0 1 pg (as Pb) and are dependent on the volatility of the speaes determmed Two procedures for the separation and ennchment of organolead m water samples were evaluated Iomc organolead spemes were extracted as their dlethylcbtbmcarbamate complexes &her with one portlon of hexane at pH 8 or turlce with pentane at pH 9, wtth preconcentratlon m the latter Instance by rotary evaporation of the solvent The detection hmlts obtamed were down to 2 and 0 1 ng I-', respectively for lOO-ml samples Propylatlon and butylation were compared for denvatlzatlon of organolead species m the extracts Examples of results for ram and tap water analyses are given

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