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Dr. Martin Thomas

Scientist at Quantachrome

Dr. Martin A. Thomas

Dr. Thomas, Quantachrome's Technical Service Manager. Dr. Thomas has more than thirty five years of industrial experience in the characterization of powders and porous materials. After studying for his Masters degree in analytical chemistry and then his doctorate in inorganic/physical chemistry - both at the School of Chemistry, University of Birmingham (UK) - he joined Cookson Group's Central Research labs where he began his specialization in powders. He joined ICI's Catalyst Research Centre (now a Johnson-Matthey facility) in 1985 and spent six years as a Principal Research Officer in charge of the porous materials characterization lab with additional duties in thermal analysis and specialized project areas. In 1991 Dr. Thomas joined Quantachrome as Technical Service Manager. Since then he has provided expert technical assistance not only to our engineering, sales, service, customer training and laboratory functions, but also to existing and potential customers and overseas representatives alike. During his almost 30 years with Quantachrome and now Anton Paar, Dr Thomas has held the positions of Director of Engineering, Director of Applied Technology, Director of Business Development, Director of Product Development, International Sales Manager for Europe, Middle East and North Africa, and is now a QuantaTec Product Manager.


Teaching Interests

Dr. Thomas regularly lectures for the Center for Professional Advancement in their courses on powder properties and processing, which includes pharmaceutical tablet, granule and capsule technology.

He also organizes and presents one- and two-day Quantachrome short courses and seminars, for beginners and intermediate level, in the field of porous materials and catalyst characterization techniques. To date, the combined audience for these short courses totals more than 500.


Dr. Thomas provides application support primarily for catalyst characterization by chemisorption and temperature programmed methods, and also for pharmaceutical materials. He is particularly interested in improving protocols for excipient characterization, especially with regard to magnesium stearate BET surface area.

Selected Publications
  • United States Patent 8,545,887 Sowden et al (2013) "Modified Release Dosage Forms"

  • European Patent 1,429,724 Bunick et al (2013) “Dosage Form Containing a Confectionery Composition”

  • "Surface Area: The Most Underutilized Particle Property in Pharma", M.A. Thomas (2012) Pharmafocus, 10, 2-5

  • United States Patent 7,972,624 Li et al (2011) "Method of Manufacturing Modified Release Dosage Forms"

  • United States Patent 7,968,120 Li et al (2011) "Modified Release Dosage Forms"

  • United States Patent 7,807,197 Lee et al (2010) "Composite Dosage Forms Having An Inlaid Portion"

  • European Patent 1,429,746 Bunick et al (2008) "Dosage Forms Having An Inner Core And Outer Shell"

  • European Patent 1,429,738 Lee et al (2007) "Modified Release Dosage Forms"

  • Characterization of Porous Solids and Powders: Surface Area, Porosity and Density, S. Lowell, J. Shields, M.A.Thomas & M. Thommes (2004) Springer, ISBN 1402023022.

  • United States Patent, 6,387,704 Thomas et al (2002) "Method for compensating for the time-dependent change in coolant level during gas sorption analysis".

  • "Characterization of a gel-derived silica intended for use as a reference material", M.A. Thomas and N.J. Coleman, (2001) Colloids and Surfaces A: Physicochemical and Engineering Aspects, 187/188, 123 - 130.

  • "A New Gel- Derived Mesoporous Gas Sorption Reference Material: Supporting Mercury Intrusion Data", N.J. Coleman and M.A. Thomas, in Adsorption Science and Technology, Editor Duong D. Do, World Scientific (2000), 608 - 612.

  • "Tablet Technology. Measuring the Surface Area of Magnesium Stearate using Nitrogen Physisorption." E. Haley, M. Atwell, D. Malpas, M. Tucker and M. A. Thomas, Bulk Handling International, 55 - 57 (May/June 1998).

  • "Recent Advances in the Interpretation of Mercury Porosimetry Data", C.A. Leon y Leon and M.A. Thomas, GIT Laboratory Journal, (1997) 1, 101-104.

  • “Powder/Particle Characterization Techniques”, M.A. Thomas and F.S. Lowell, Ceramic Industry (1992) March.

  • "Modelling of Mercury Intrusion and Extrusion." M. Day, I.B. Parker, J. Bell, M.A. Thomas, R.S. Fletcher and J. Duffie, IUPAC Symposium on Characterization of Porous Solids (COPS II), Alicante (1990).

  • "Refinement of the structure of deuterated nickel hydroxide, Ni(OD)2, by powder neutron diffraction and evidence for structural disorder in samples with high surface area.", C. Greaves and M. A. Thomas (1986) Acta Cryst. B42, 51-55.

  • "Structure of the mixed conductor Ni2O3H by powder neutron diffraction" Colin Greaves, A. Melanie Malsbury and Martin A. Thomas (1986) Solid State Ionics 18-19, 763-767.

  • "Structural and Electrochemical Characteristics of Plastic (PTFE) Bonded Nickel Hydroxide Electrodes.” C. Greaves, M.A. Thomas and M. Turner, J Power Sources 12 (1984) 195-202.

  • "The Nickel Hydroxide Electrode: Structural and thermodynamic aspects.” C. Greaves, M.A. Thomas and M. Turner, in Power Sources 9, Proceedings of the 13th International Power Sources Symposium 1982, Academic Press (1983).

Committee Memberships

ASTM Committees C01, Cement; D11, Rubber; D20, Plastics; D24, Carbon Black; D32, Catalysts; F04, Medical and Surgical Materials and Devices.