Total Extractable Tin Measurement in Complex Matrices. An Evaluation.

Abstract

Direct measurement by GFAAS(Graphite Furnace Atomic Absorption Spectrophotometry) of organic extracts for extractable tin results in a concentration value highly dependent upon both sample composition and the standard use for the calibration. Measurement of these extracts after washing with NaOH and using Bu3SnCl as a standard, however, results in a reliable measurement of Bu3Sn in the extract. Gas chromatography after derivatization of the butyltins with pentyl magnesium bromide and flame AAS after the formation of hydride derivatives were also used to measure concentrations of butyltins in organic extracts. Provided the sample for hydride derivatization is highly diluted to prevent organics interference, good correlation between the two methods is obtained for all butyltins and for Bu3Sn measured by GFAAS after the NaOH wash. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1986
Accession Number
ADA170922

Entities

People

  • Carol A. Dooley
  • Giti Vafa

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Absorption
  • Alkanes
  • Calibration
  • Chromatographic Analysis
  • Chromatography
  • Classification
  • Detectors
  • Ecology
  • Environment
  • Food Chains
  • Gas Chromatography
  • Graphitic Materials
  • Materials
  • Measurement
  • Spectrophotometry
  • Standards
  • Tissue Extracts

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  • Analytical Chemistry