Determination of acetic acid in vinegar by gas phase molecular absorption spectrometry after methyl acetate generation

  1. Sanz-Vicente, I. 1
  2. Cabredo, S. 2
  3. Galban, J. 1
  1. 1 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revue:
Mikrochimica acta

ISSN: 0026-3672

Année de publication: 2000

Volumen: 134

Número: 3

Pages: 199-203

Type: Article

DOI: 10.1007/S006040070032 SCOPUS: 2-s2.0-0034518813 WoS: WOS:000088914500012 GOOGLE SCHOLAR

D'autres publications dans: Mikrochimica acta

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Résumé

This paper describes a method for the quantitative determination of acetic acid by gas-phase molecular absorption spectrometry. The proposed method is based on the generation of methyl acetate with subsequent measurement of the volatile absorbance at 216 nm. The generation, transport and measurement conditions are optimized. Under the recommended conditions, the analytical characteristics are obtained, with a detection limit of 0.005 M. The method is tested with vinegar samples. The analytical results obtained by the proposed method agree with those of a reference method.