Sample preparation in determination of lead in garden vegetables by flame atomic absorption spectrophotometry.

@article{Preer1982SamplePI,
  title={Sample preparation in determination of lead in garden vegetables by flame atomic absorption spectrophotometry.},
  author={James R. Preer and B R Stephens and Charles Bland},
  journal={Journal - Association of Official Analytical Chemists},
  year={1982},
  volume={65 4},
  pages={1010-5}
}
Dry and wet ashing methods have been used in the analysis of garden vegetables for Pb. The reliability of wet ashing has been verified by the method of standard additions. Comparison of dry and wet ashing showed good agreement for a variety of garden vegetables. Sample size was more strictly limited for the wet-ashed samples, which led to lower sensitivity… CONTINUE READING