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Published online 3 April 2006
Published in J Environ Qual 35:695-700 (2006)
DOI: 10.2134/jeq2005.0282
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Determination of Steroidal Estrogens in Flushed Dairy Manure Wastewater by Gas Chromatography-Mass Spectrometry

Travis A. Hanselmana,*, Donald A. Graetza, Ann C. Wilkiea, Nancy J. Szabob and Carolyn S. Diazb

a Soil and Water Science Department, P.O. Box 110510, University of Florida, Gainesville, FL 32611-0510
b Analytical Toxicology Core Laboratory, P.O. Box 110885, University of Florida, Gainesville, FL 32611-0885


Figure 1
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  		Fig. 1. Net amount of 17{alpha}-estradiol, estrone, 17ß-estradiol, and estriol extracted from flushed dairy manure wastewater (FDMW) (n = 4) after spiking with 20, 40, 60, and 80 ng of target analytes.

 

Figure 2
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  		Fig. 2. Selected ion chromatogram of unspiked flushed dairy manure wastewater (FDMW) showing the retention time of the BSTFA [N,O-bis(trimethylsilyl)fluoroacetamide] derivatives of (a) estrone, (b) 17{alpha}-estradiol, (c) 17ß-estradiol, and the internal standard (d) d12-pyrelene.

 

Figure 3
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  		Fig. 3. Selected ion chromatogram of spiked flushed dairy manure wastewater (FDMW) showing the retention time of the BSTFA [N,O-bis(trimethylsilyl)fluoroacetamide] derivatives of (a) estrone, (b) 17{alpha}-estradiol, (c) 17ß-estradiol, the internal standard (d) d12-pyrelene, and (e) estriol after spiking with 40 ng of each estrogen analyte.

 




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