Some observations on the use of a hydride generation Flame-Heated silica tube atomic absorption spectrophotometric system for the determination of lead in wine

  1. Sanz, J.
  2. Basterra, P. 1
  3. Galbán, J.
  4. Castillo, J.R. 1
  1. 1 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

Revista:
Microchemical Journal

ISSN: 0026-265X

Año de publicación: 1989

Volumen: 40

Número: 1

Páginas: 115-124

Tipo: Artículo

SCOPUS: 2-s2.0-0024316333 GOOGLE SCHOLAR

Otras publicaciones en: Microchemical Journal

Resumen

This paper presents a method for directly determining of lead in wine by hydride generation-atomic absorption spectrophotometry. Lead hydride is generated from the wine matrix, using ammonium persulfate as the oxidizing agent and sodium borohydride as the reducing agent. The sample is not subjected to prior oxidation or other sample treatment. Lead hydride is atomized in a flame-heated silica tube. Optimum conditions for hydride generation are studied. Lead concentrations found in wine using this method agree with those from three other methods.