Publications

  1. Roberts, D. L., J. P. Mitchell, “Spatial Aerosol Flow Maldistribution: A Design Flaw Confounding the Proper Calibration and Data Interpretation of Stages ‘0’ and ‘1’ of the Andersen Eight-Stage Nonviable Cascade Impactor,” Aerosol Sci. Tech., 50, 1-12 (2016).
  2. Roberts, D. L., J. P. Mitchell, ““The Next Generation Impactor (NGI™) – Manufacturing Control: Part II.  Collection Cups and the Critical Jet-to-Plate Distance,” Inhalation, August 2016, pages 9-15.
  3. Roberts, D. L., J. P. Mitchell, “The Next Generation Impactor (NGI™) – Manufacturing Control: Part I. Nozzles,” Inhalation, April 2016, pages 12-19.
  4. Nichols, S. C., J. P. Mitchell, C. M. Shelton, D. L. Roberts, “Good Cascade Impactor Practice (GCIP) and Considerations for ‘In-Use’ Specifications,” AAPS Pharm. Sci. Tech., 14(1), 375-90 (March 2013).
  5. Roberts, D. L., J. P. Mitchell, “Influence of Stage Efficiency Curves on Full-Resolution Impactor Data Interpretation,” Drug Delivery to the Lung, The Aerosol Society, Edinburgh, Scotland, December 7-9, 2011, pp. 181-4.
  6. Roberts, D. L., J. P. Mitchell, “The Effect of Nonideal Cascade Impactor Stage Collection Efficiency Curves on the Interpretation of the Size of Inhaler-Generated Aerosols,” AAPS Pharm. Sci. Tech., 14 (2), 497-510 (June 2013).
  7. Roberts, D. L., “Theory of Multi-Nozzle Impactor Stages and the Interpretation of Stage Mensuration Data,” Aerosol Sci. Tech., 43, 1119-29 (2009).
  8. Marple, V. A., B. A. Olson, K. Santhanakrishnan, D. L. Roberts, J. P. Mitchell, B. L. Hudson-Curtis, “Next Generation Pharmaceutical Impactor: A New Impactor for Pharmaceutical Inhaler Testing.  Part III.  Extension of Archival Calibration to 15 L/min,” Aerosol Med., 17, 335-43 (2004).
  9. Marple, V. A., D. L. Roberts, F. J. Romay, N. C. Miller, K. G. Truman, M. Van Oort, B. Olsson, M. J. Holroyd, J. P. Mitchell, D. Hochrainer, “Next Generation Pharmaceutical Impactor -- Part I: Design,” Aerosol Med., 16, 283-99 (2003).
  10. Marple, V. A., D. L. Roberts, B. Y. H. Liu, “Efficient High-Productivity Cascade Impactors,” US Patent 6,453,758, September 24, 2002.