Draper W, Wijekoon D, Stephens R (1991)
Determination of malathion urinary metabolites by isotope dilution ion trap GC/MS. J Agr Food Chem 39:1796-1801. Abstract and first page: http://pubs.acs.org/doi/abs/10.1021/jf00010a021?journalCode=jafcau
Draper W, Koszdin S (1991)
Speciation and quantitation of Aroclors based on PCB congener data: application to California mussels and white croaker. J Agr Food Chem 39:1457-67. Abstract and first page: http://pubs.acs.org/doi/abs/10.1021/jf00008a019?journalCode=jafcau
Draper W, Park H, Stephens R (1991)
Determination of OCDD and OCDF in soils and biological samples by GC/ECD. Waste Testing and Quality Assurance: Third Volume, ASTM STP 1075, CE Tatsch, Ed., American Society for Testing and Materials, Philadelphia, PA.
Brown M, Stephens R, Kim I (1991)
Liquid chromatography mass spectrometry: A new window for environmental analysis. TRAC-Trend Anal Chem 10:330-6. doi:10.1016/0165-9936(91)87009-U. Abstract: http://www.sciencedirect.com/science/article/pii/016599369187009U
Brown R, Draper W (1991)
The matrix effect in particle beam liquid chromatography/mass spectrometry and reliable quantification by isotope dilution. Biol Mass Spectrom 20:515-21. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/1782203
Stephens R, Rappe C, Hayward D, Nygren M, Startin J, Esbøll A, Carlé J, Yrjänheikki E (1992)
WHO international intercalibration study of dioxins and furans in human milk and blood. Anal Chem 64:3109-17. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/1492663
Petreas M, Rappaport S, Materna B, Rempel D (1992)
Mixed-exhaled air measurements to assess exposure to tetrachloroethylene in dry cleaners. J Expo Anal Env Epid 1:25-39.
Petreas M, Wiesmuller T, Palmer F, Winkler J, Stephens R (1992)
Aquatic life as biomonitors of PCDD/F and coplanar PCB contamination in the Sacramento-San Joaquin River Delta. Chemosphere 25:621-31. Abstract: here.
Kimbrough D, Wakakuwa J (1992)
A study of the linear ranges of several acid digestion procedures. Environ Sci Technol 26:173-8. Abstract: http://pubs.acs.org/doi/abs/10.1021/es00025a021
Kimbrough D, R Chin, J Wakakuwa (1992)
Industry-wide performance in a pilot proficiency evaluation sample program for hazardous materials laboratories Part 1: Elemental precision and accuracy. Environ Sci Technol 26:2091-100.
