Lowering detection limits for 1,2,3‐trichloropropane in water using solid phase extraction coupled to purge and trap sample introduction in an isotope dilution GC‐MS method, W. Liao, M. Ghabour, W. Draper, E. Chandrasena, Chemosphere, 2016, 158, 171‐176.
Optimizing LC‐MS‐MS determination of microcystin toxins in natural water and drinking water supplies, W. Draper, D. Xu, P. Behniwal, M. McKinney, P. Jayalath, J. Dhoot, D. Wijekoon, Analalytical Methods, 2013, 5(23), 6796‐6806.
Identification of Volatile and Semivolatile Compounds in Chemical Ionization GC‐MS Using a Mass‐To‐Structure (MTS) Search Engine with Integral Isotope Pattern Ranking, W. Liao and W. Draper, Analyst, 2013, 138 (4), 1038‐47.
Evaluation of variability and quality control procedures for a receptor‐binding assay for paralytic shellfish poisoning toxins. Ruberu, S.R., Langlois, G.W., Masuda, M., Perera, S.K. Journal of Food Additives & Contaminants: Part A, 2012, 29, 1770 ‐ 1779.
Electrolyte‐induced Ionization Suppression in Microcystin Toxins: Ammonium Formate Suppresses Sodium Replacement Ions and Enhances Protiated and Ammoniated Ions for Improved Specificity in Quantitative LC‐MS‐MS. W. Draper, D. Xu and S. K. Perera, Analytical Chem. 2009, 81 (10), 4153–4160.
Identification of Unknowns in API Mass Spectrometry Using a Mass to Structure (MTS) Search Engine, W. Liao, W. Draper, and S. K. Perera, Analytical Chem., 2008, 80 (20), 7765–7777.
Direct Determination of Dialkyl Phosphates by Strong Anion Exchange Liquid Chromatography Atmospheric Pressure Chemical Ionization Mass Spectrometry Using a Quadrupole Ion Trap Instrument, W. Draper, P. Behniwal, and D. Wijekoon, Rapid Communications in Mass Spectrometry 2008, 22, 2613‐2620.
An improved liquid scintillation counting method for the determination of gross alpha activity in groundwater wells. Ruberu, S.R., Liu, Y‐G., Perera, S.K. Journal of the Health Physics Society, 2008, 95(4), 397‐406.
Occurrence and Distribution of Pb‐210 and Po‐210 in California Groundwater Determined by a Single Sample Method. Ruberu, S.R., Liu, Y‐G, Perera, S.K Journal of Health Physics, 2007, 92(5), 432‐441.
Testing for Persistent Organic Pollutants in Banked Maternal Serum Specimens, W. Draper, J. Liang, M. Fowler, M. Kharrazi, P. Flessel, K. Perera, In: Assessing Exposures and Reducing Risks to People from the Use of Pesticides, R. Krieger, N. Ragsdale and J. Seiber (eds), American Chemical Society Symposium Series No. 951, ACS, Washington, DC, 2007. Occurrence of 224Ra, 226Ra, 228Ra, Gross Alpha, and Uranium in California Ground Water. Ruberu, S.R., Liu, Y‐G, Perera, S.K Journal of Health Physics, 2005, 89(6), 667‐678.
A Receptor Binding Assay for Paralytic Shellfish Poisoning Toxins: Optimization and Interlaboratory Comparison. Ruberu, S.R., Liu, Y‐G., Wong, C.T., Perera, S.K., Langlois, G.W., Doucette, G.J., Powell, C.L. Journal of AOAC International, 2003, 86, 737‐745.
California Biomonitoring Plan, Project Staff: P. Flessel, W. Draper, K. Perera, L. Copan, T. Quach, C. Arnesen, E. Blake and J. Liang, California Department of Health Services, 2003
Atmospheric Pressure Ionization LC‐MS‐MS Determination of Urushiol Congeners, W. Draper, D. Wijekoon, M. McKinney, P. Behniwal, S. Kusum Perera, and C. Peter Flessel, J. Agric. Food Chem. 2002, 50, 1852‐1858. Paper of the month in journal.
Near UV Quantum Yields for Rotenone and Piperonyl Butoxide, W. Draper, Analyst, 2002, 127, 1370‐1374.
Electrospray LC‐Quadrupole Ion Trap‐MS Determination of Phenyl Urea Herbicides in Water. W. Draper J. Agric. Food Chem. 2001, 49, 2746‐2755.
Levels of DDT in Breast Milk of Los Angeles Women. D. Smith, W. Draper, G. Pollock and P. J. Papanek, Jr., California Department of Health Services, 2001.
Biological Monitoring: Exquisite research probes, risk assessment, and routine exposure measurement. W. Draper, Analytical Chemistry, 2001, 73(12), 2745‐2760 (2‐YearIndustrial Hygiene Applications Review). Among the most‐Accessed, ACS Web Edition Articles in Analytical Chemistry: July‐September, 2007.
Multiresidue HPLC Methods for Phenyl Urea Herbicides in Water, Shiyamalie R. Ruberu, W. Draper and S. Kusum Perera, J. Agric. Food Chem. 2000, 48, 4109‐4115.
Trace‐level Determination of 1,4‐Dioxane in Water by Isotope Dilution GC and GC‐MS. W. Draper, J. S. Dhoot, J. W. Remoy and S. K. Perera, Analyst, 2000, 125, 1403‐1408.
Industrial Hygiene Chemistry: Keeping Pace with Rapid Change in the Workplace. (2‐Year Applications Review) W. Draper, K. Ashley, C. R. Glowacki and P. R. Michael, Analytical Chemistry, 1999, 71, 33‐60.
Determination of Rotenoids and Piperonyl Butoxide in Water, Sediments and Piscicide Formulations. W. Draper, J. S. Dhoot and S. K. Perera, Journal of Environmental Monitoring, 1999, 1, 519‐524.
Getting Reliable Data from Water Labs Testing for MTBE (or any Other Volatile Contaminant), Proceedings of the National Groundwater Association Southwest Focused Conference on MTBE and Perchlorate in Groundwater, June 3‐4, 1998, Anaheim, CA. Detection Limits of Organic Contaminants in Drinking Water, W. Draper, J. Dhoot, J. Dhaliwal, J. Remoy, S. Perera and F. Baumann, AWWA Journal 1998, 90, 82‐90.
Why MDLs Vary Widely Between Laboratories, W. Draper, S. K. Perera, and F. J. Baumann, In the Proceedings of the 20th Annual USEPA Conference on Analysis of Pollutants in the Environment, Norfolk, VA, May, 1997.
Pesticide exposures to children from California's central valley: Results of a pilot study. M. A. Bradman, M. Harnly, W. Draper, S. Seidel, S. Teran, D. Wakeham and R. Neutra, Journal of Exposure Analysis and Environmental Epidemiology 1997, 7, 217‐234.
The Genetic Toxicology of Malathion: Results of an epidemiologic study in agricultural worker and in vitro laboratory studies. Acknowledged contribution to report from Kim Belshe, Director, California Department of Health Services, November, 1996.
A Community‐based Epidemiologic Study of Acute Health Effects from a Metam‐sodium Spill on California's Sacramento River, R. Kreutzer, D. Hewitt, R. Sun, W. Draper, D. Mangiamele, L. Goldman, R. Jackson, D. Smith and D. Shusterman, Toxicology and Industrial Health 1996, 12, 267‐275.
Determination of diesel fuel and motor oil in water and wastes by a modified diesel‐range organics total petroleum hydrocarbon method. W. Draper, J. Dhaliwal, S. Perera and F. Baumann, J. AOAC International 1996, 79 (March/April), 1‐12.
Applications of new HPLC/MS techniques in human biomonitoring, W. Draper, F. Brown, R. Bethem, M. Miille, and C. Becker, In: Applications of Molecular Biology in Environmental Chemistry, edited by R. Minear, N. Karch, L. Needham, and A. Ford, Lewis Publishers, Inc., Chelsea, MI, May, 1995.
Optimizing nitrogen‐phosphorus detector gas chromatography for pesticide analysis. W. Draper, J. Agric. Food Chem. 1995, 43, 2077‐2082.
Malathion diacid in urine samples from Dekalb County, Georgia. Final report of a professional services contract to the Centers for Disease Control and Prevention, Atlanta, GA (PHS/USDHHS). W. Draper. California Public Health Foundation, October, 1995, 16 pages.
Estimating malathion doses in California's Medfly eradication campaign using a physiologically‐based pharmacokinetic model. M. H. Dong, W. Draper, P. J. Papanek, Jr., J. H. Ross, K. A. Woloshin, and R. D. Stephens, In: Environmental Epidemiology: Effects of Environmental Chemicals on Human Health, edited by W. Draper, ACS Advances in Chemistry Series No. 241, American Chemical Society, Washington, DC, 1994.
An epidemiological assessment of the Cantara metam‐sodium spill: Acute health effects and methyl isothiocyanate exposures. R. A. Kreutzer, D. J. Hewitt, and W. Draper, In: Environmental Epidemiology: Effects of Environmental Chemicals on Human Health, edited by W. Draper, ACS Advances in Chemistry Series No. 241, American Chemical Society, Washington, DC, 1994.
Toxicology and risk assessment. A. L. Craigmill, S. Wetzlich, and W. Draper, In: Environmental Epidemiology: Effects of Environmental Chemicals on Human Health, edited by W. Draper, ACS Advances in Chemistry Series No. 241, American Chemical Society, Washington, DC, 1994.
Rate constants for metam‐sodium cleavage and photodecomposition in water, W. Draper and D. E. Wakeham, J. Agric. Food Chem. 1993 41, 1129‐1133.