Publications by authors named "Simeon Udunka"

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Urinary concentrations of metabolites of pyrethroid insecticides in the general U.S. population: National Health and Nutrition Examination Survey 1999-2002.
Dana Boyd Barr, Anders O Olsson, Lee-Yang Wong, Simeon Udunka, Samuel E Baker

Environ Health Perspect· June 2010

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Quantification of atrazine and its metabolites in urine by on-line solid-phase extraction-high-performance liquid chromatography-tandem mass spectrometry.
Parinya Panuwet, Johnny V Nguyen, Peter Kuklenyik, Simeon O Udunka, Larry L Needham

Anal Bioanal Chem· July 2008

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Assessing exposure to atrazine and its metabolites using biomonitoring.
Dana B Barr, Parinya Panuwet, Johnny V Nguyen, Simeon Udunka, Larry L Needham

Environ Health Perspect· October 2007

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Concentrations of selective metabolites of organophosphorus pesticides in the United States population.
Dana B Barr, Ruth Allen, Anders O Olsson, Roberto Bravo, Lisa M Caltabiano, Simeon Udunka

Environ Res· November 2005

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A liquid chromatography--tandem mass spectrometry multiresidue method for quantification of specific metabolites of organophosphorus pesticides, synthetic pyrethroids, selected herbicides, and deet in human urine.
Anders O Olsson, Samuel E Baker, Johnny V Nguyen, Lovisa C Romanoff, Simeon O Udunka

Anal Chem· May 2004

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