Environmental Technology · 1992 · 13 citations · 9 references
Natural SciencesChemistryEnvironmental SciencesAir PollutionAnalytical ChemistryEnvironmental ChemistryAir Pollution MeasurementAir QualityEnvironmental AnalysisEnvironmental Analytical ChemistryHeavy Metal AnalysisParticulate MatterAnalytical Detection Of Heavy MetalsDigestionElectrothermal Atomic Absorption SpectrometryHeavy Metals In AirParticulate Matter CharacterizationUrban Air CompositionUrban Air PollutantsZeeman Correction
Abstract Some heavy metals in the air participates of Calcutta city collected on Millipore membrane filter by a low volume sampler (luring Spring 1987 have been reported. The results have been compared with other cities of the world. For determination of heavy metals collected on Millipore membrane filter a simple digestion with nitric acid ‐ hydrogen peroxide in small Teflon Bomb has been described. The heavy metals Fe, Mn, Ni, Co, Cu, Cd, Pb, & As in the particulates were determined by electrothermal atomic absorption spectrometry with L'vov Platform & Zeeman correction. Matrix modifiers were used for Cd, Pb & As. The performance of the procedure was confirmed by analysing NBS‐SRM 1648 “Urban Particulates’.
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B.G. Bennett, Jan Kretzschmar, Gerald G. Skland et al. · Environmental Science & Technology · 1985 · 38 citations