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Rocklan McDowell

Research and Development Scientist

Research Areas:

Rocklan G. McDowell, is a research scientist in the Aqueous Separations and Radio Chemistry Department at Idaho National Laboratory. In this capacity, he performs organic and inorganic identification and quantitation analyses, completes hydrolytic and radiolytic degradation studies of mixed aqueous and organic solvent systems, and studies reaction kinetics in mixed phase systems. McDowell received his B.S. in chemistry and his B.A. in German from Idaho State University. He has extensive experience in different facets of Analytical Chemistry. He has worked mainly with Fourier Transform Infrared (FTIR) spectrometry, gas chromatography (GC), gas chromatography - mass spectrometry (GC-MS), ion chromatography (IC), liquid chromatography (LC & HPLC), inductively coupled plasma - optical emission spectroscopy (ICP-EOS), inductively coupled plasma - mass spectrometry (ICP-MS), solvent extraction, and gross morphological techniques for both identification and quantitative analysis of unknown species. Outside of work, McDowell is an avid golfer, enjoys snowboarding, hunting, and is a member of the Idaho Falls Elks Lodge. He also enjoys traveling and exploring new places with his wife.


​B.S., Chemistry - Idaho State University

B.A., German - Idaho State University


​Peterman, D. R., Zarzana, C. A. Tillotson,R. D.,  McDowell, R. G.. Rae, C., Law, J. D. and Groenwold, G. S., “Evaluation of the impacts of gamma radiolysis on an ALSEP process solvent," J Radioanal Nucl Chem, February 2018.

Peterman, D. R., Geist, A., Mincher, B. J., Modolo, G., Galán, H., Olson, L., McDowell, R. G., “Performance of an I-SANEX system based on a water-soluble BTP under continuous irradiation in a gamma radiolysis test loop,” Industrial and Engineering Chemistry Research, 55 (39), pp. 10427–10435, October 5,  2016.

K. Larsson, T. D. Cullena, S. P. Mezyk, R. G. McDowell and L. R. Martin, “Complications in complexation kinetics for lanthanides with DTPA using dye probe molecules in aqueous solution,” RSC Advances, 7, pp. 26507 – 26512, May 2017.

Zhang, H. McDowell, R. G., Martin, L. R., Qiang, y., “Selective Extraction of Heavy and Light Lanthanides from Aqueous Solution by Advanced Magnetic Nanosorbents,” Applied Materials and Interfaces, 8, No. 14, pp 9523-9531, March 2016.

Christopher A. Zarzana, Dean R. Peterman, Gary S. Groenewold, Lonnie G. Olson, Rocklan G. McDowell, William F. Bauer & Sabrina J. Morgan, “Investigation of the Impacts of Gamma Radiolysis on an Advanced TALSPEAK Separation,” Separation Science and Technology, 50:18, 2836-2843, Septmber 2015.

Zalupski, P. R., McDowell, R., and Dutech, G. “The Adsorption of Gold, Palladium, and Platinum from Acidic Chloride Solutions on Mesoporous Carbons,” Solvent Extraction and Ion Exchange, 32: 737-748, October 2014.

Zalupski, P. R., McDowell, R., and Clegg, S. L. “Isopiestic Determination of the Osmotic Coefficients of NaNO3 + Eu(NO3)(3) + H2O at 298.15 K and Representation with an Extended Ion-Interaction (Pitzer) Model,”  Journal of Chemical and Engineering Data, Vol 59 (5), May 2014.

Peterman, D. R., Olsen, L.G., McDowell, R. G.. Elias G., and Law, J. D., “Summary of TRUEX Radiolysis Testing Using the INL Radiolysis Test Loop," US DOE-NE, March 2012.

Version: 4.0
Created at 3/23/2018 2:01 PM by Phyllis L. King
Last modified at 5/14/2018 3:29 PM by Phyllis L. King