Rapid and sensitive determination of the prochloraz residues in the cultivated mushroom, Agaricus bisporus (Lange) Imbach


CENGİZ M. F. , ÇATAL M., ERLER F., Bilgin A. K.

ANALYTICAL METHODS, vol.6, no.6, pp.1970-1976, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 6 Issue: 6
  • Publication Date: 2014
  • Doi Number: 10.1039/c3ay42293c
  • Title of Journal : ANALYTICAL METHODS
  • Page Numbers: pp.1970-1976

Abstract

The QuEChERS ( quick, easy, cheap, efficient, rugged, and safe) sample preparation method and gas chromatography-electron capture detector (GC-ECD) were adopted for rapid extraction and determination of prochloraz residues in cultivated mushrooms. The results were further confirmed by using a gas chromatography-mass spectrometry (GC-MS) system. The method showed that there was a good linear relationship with a correlation coefficient of r(2) = 0.999 in the concentration ranges from 52.9 to 1000 mu g L-1 . The limit of detection (LOD) of the GC-ECD method was 15.9 mu g kg(-1) and the limit of quantification (LOQ) was 52.9 mu g kg(-1) The data satisfactorily demonstrated the good repeatability of the method with relative standard deviations (RSDs) lower than 20%. The recovery values for spiked mushroom samples were 100.6 +/- 1.6% and 105.6 +/- 3.9% for 250 and 1000 mu g kg (-1), respectively. The samples from seven different mushroom growing facilities were analyzed. The residue levels of prochloraz ranged from