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    STUDIA CHEMIA - Issue no. 2 / 2011  
         
  Article:   PRELIMINARY RESULTS ON THE ANALYSIS OF STEROIDS IN POULTRY SAMPLES BY DIRECT IMMERSION SOLID-PHASE MICROEXTRACTION AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY.

Authors:  LĂCRIMIOARA ŞENILĂ, MIRELA MICLEAN, ERIKA LEVEI, CECILIA ROMAN, CORNELIA MAJDIK.
 
       
         
  Abstract:  This paper reports a rapid method for analysis of steroid hormones in poultry serum samples. The target compounds were first extracted by direct immersion on solid-phase microextraction (SPEME) procedure, followed by on fiber derivatization with methyl-N-(trimethylsilyl) trifluoroacetamide (MSTFA) and, final, analysis by gas chromatography with mass spectrometry (GC-MS). The average correlation coefficient of the calibration curve of the steroid hormones was 0.9955. The LOD/(LOQ) values of the steroid hormones in poultry serum samples were in the range of 0.020-0.068/(0.060-0.204) µg L-1. The concentrations of estrone and ß-estradiol in poultry serum were 2.08 µg L-1 and 3.61 µg L-1, respectively.

Keywords: Steroid hormones, SPME, GC-MS 

 
         
     
         
         
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