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Dirk HolstegeAdjunct Professor |
Development of analytical methodologies for chemical analysis in soil, plant tissue, biological materials, and water. Analysis for naturally-occurring toxins of plant origin. Trace metal analysis and trace organic analysis. Application of LC/MS/MS for trace analysis.
Holstege DM, Scharberg DL, Richardson ER, Moller G. Multiresidue screen for organophosphorus insecticides using gel permeation chromatography--silica gel cleanup. J Assoc Off Anal Chem. 1991 Mar-Apr;74(2):394-9.
Holstege DM, Scharberg DL, Tor ER, Hart LC, Galey FD. A rapid multiresidue screen for organophosphorus, organochlorine, and N-methyl carbamate insecticides in plant and animal tissues. J AOAC Int. 1994 Sep-Oct;77(5):1263-74.
Tor ER, Holstege DM, Galey FD.Determination of cholinesterase activity in brain and blood samples using a plate reader. J AOAC Int. 1994 Sep-Oct;77(5):1308-13.
Galey FD, Holstege DM, Plumlee KH, Tor E, Johnson B, Anderson ML, Blanchard PC, Brown F. Diagnosis of oleander poisoning in livestock. J Vet Diagn Invest. 1996 Jul;8(3):358-64.
Holstege DM, Francis T, Puschner B, Booth MC, Galey FD. Multiresidue screen for cardiotoxins by two-dimensional thin-layer chromatography. J Agric Food Chem. 2000 Jan;48(1):60-4.
Holstege DM, Puschner B, Le T. Determination of grayanotoxins in biological samples by LC-MS/MS. J Agric Food Chem. 2001 Mar;49(3):1648-51.
Holstege DM, Puschner B, Whitehead G, Galey FD. Screening and mass spectral confirmation of beta-lactam antibiotic residues in milk using LC-MS/MS. J Agric Food Chem. 2002 Jan 16;50(2):406-11.
TenBrook PL, Viant MR, Holstege DM, Williams JF, Tjeerdema RS. Characterization of California rice field soils susceptible to delayed phytotoxicity syndrome. Bull Environ Contam Toxicol. 2004 Sep;73(3):448-56.
Owens JE, Holstege DM, Clifford AJ. Quantitation of total folate in whole blood using LC-MS/MS. J Agric Food Chem. 2005 Sep 21;53(19):7390-4.