Analysis of pyrimethanil, metalaxyl, dichlofluanid and penconazol in must and wine from red grapes by solid-phase extraction and gas chromatography

  1. Vaquero-Fernández, L. 1
  2. Sanz-Asensio, J. 1
  3. López-Alonso, M. 1
  4. Martínez-Soria, M.-T. 1
  1. 1 Universidad de La Rioja

    Universidad de La Rioja

    Logroño, España


Analytical Letters

ISSN: 0003-2719

Year of publication: 2009

Volume: 42

Issue: 12

Pages: 1761-1783

Type: Article

DOI: 10.1080/00032710903060644 SCOPUS: 2-s2.0-70449337180 WoS: WOS:000268831400002 GOOGLE SCHOLAR

More publications in: Analytical Letters


Cited by

  • Scopus Cited by: 7 (12-01-2023)
  • Web of Science Cited by: 5 (12-01-2023)

JCR (Journal Impact Factor)

  • Year 2009
  • Journal Impact Factor: 1.317
  • Journal Impact Factor without self cites: 1.074
  • Article influence score: 0.264
  • Best Quartile: Q3
  • Area: CHEMISTRY, ANALYTICAL Quartile: Q3 Rank in area: 44/70 (Ranking edition: SCIE)

SCImago Journal Rank

  • Year 2009
  • SJR Journal Impact: 0.52
  • Best Quartile: Q2
  • Area: Electrochemistry Quartile: Q2 Rank in area: 14/32
  • Area: Biochemistry (medical) Quartile: Q2 Rank in area: 17/56
  • Area: Clinical Biochemistry Quartile: Q3 Rank in area: 63/125
  • Area: Biochemistry Quartile: Q3 Rank in area: 224/368
  • Area: Analytical Chemistry Quartile: Q3 Rank in area: 54/96
  • Area: Spectroscopy Quartile: Q3 Rank in area: 38/63


This article describes a method for the simultaneous analysis of four fungicides-pyrimethanil, penconazol, metalaxyl, and dichlofluanid-in must and wine by solid-phase extraction. Two cartridges (octadecylsilane and polystyrene-divinylbenzene) were evaluated with different elution solvents. The most efficient solid phase was octadecylsilane together with ethyl acetate as elution solvent. Determination was performed by gas chromatography with a nitrogen-phosphorus detector, using metribuzin as internal quantification standard. To reduce quantitative errors from matrix effects, matrix-matched calibration was used. The linear regression coefficients were at least 0.9990. The quality parameters of the proposed method presented good recoveries from spiked must and wine, ranging from 92.3 to 105.5%, and good precision, indicated by relative standard deviations (RSDs) of less than 10%. The limits of quantification varied from 0.27 μg L-1 for penconazol in wine to 9.34 μg L-1 for metalaxyl in wine. An additional confirmation method, gas chromatography with mass spectrometry detection, was used. © Taylor & Francis Group, LLC.