Combined micro-droplet and thin-film-assisted pre-concentration of lead traces for on-line monitoring using anodic stripping voltammetry

Inessa Belostotsky, Vladimir V. Gridin, Israel Schechter*, Chaim N. Yarnitzky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

An improved analytical method for airborne lead traces is reported. It is based on using a Venturi scrubber sampling device for simultaneous thin-film stripping and droplet entrapment of aerosol influxes. At least threefold enhancement of the lead-trace pre-concentration is achieved. The sampled traces are analyzed by square-wave anodic stripping voltammetry. The method was tested by a series of pilot experiments. These were performed using contaminant-controlled air intakes. Reproducible calibration plots were obtained. The data were validated by traditional analysis using filter sampling. LODs are comparable with the conventional techniques. The method was successfully applied to on-line and in situ environmental monitoring of lead.

Original languageEnglish
Pages (from-to)482-488
Number of pages7
JournalAnalytical and Bioanalytical Chemistry
Volume375
Issue number4
DOIs
StatePublished - Feb 2003
Externally publishedYes

Keywords

  • Environment
  • Film
  • Lead
  • Monitoring
  • Pre-concentration
  • Venturi

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