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Karen E. Murphy (Assoc)

Karen's research involves the use of inductively coupled plasma mass spectrometry (ICP-MS) for the accurate analysis of inorganic elements in nanomaterials, clinical and environmental samples. Her research focuses on the application of single particle ICP-MS and isotope dilution analysis including the development of high accuracy sample preparation procedures utilizing chemical separations. She has been involved in the certification of over 85 Standard Reference Materials and participated in 15 CCQM Key and Pilot international inter-comparison exercises. She has authored or co-authored more than 35 peer-reviewed publications describing these activities.

Awards:

  • The Judson C. French Award, 2011

Membership and Professional Activities:

  • Member of ISO TC 229 International Standards for Nanotechnology WG 2

Selected Publications

Development of Two Fine Particulate Matter Standard Reference Materials (

Author(s)
Michele M. Schantz, Danielle Cleveland, N. Alan Heckert, John Kucklick, Stefan D. Leigh, Stephen E. Long, Jennifer Lynch, Karen E. Murphy, Rabia Oflaz, Adam L. Pintar, Barbara J. Porter, Savelas A. Rabb, Stacy Schuur, Stephen Wise, Rolf L. Zeisler
Two new Standard Reference Materials (SRMs), SRM 2786 Fine Particulate Matter ( 4 µm) and SRM 2787 Fine Particulate Matter ( 10 µm) have been developed in

Preparation of silver nanoparticle loaded cotton threads to facilitate measurement development for textile applications

Author(s)
Justin M. Gorham, Karen E. Murphy, Jingyu Liu, Dimitri Tselenchuk, Gheorghe NMN Stan, Thao M. Nguyen, Richard D. Holbrook, Michael R. Winchester, Robert F. Cook, Robert MacCuspie, Vincent A. Hackley
FOREWORD This NIST special publication (SP) is one in a series of NIST SPs that address research needs articulated in the National Nanotechnology Initiative

Publications

Certification of Standard Reference Material® 2386 Avocado Powder

Author(s)
Melissa M. Phillips, Laura J. Wood, George Caceres, Grace Hahm, Karen E. Murphy, Rick L. Paul, Benjamin Place, James H. Yen
The National Institute of Standards and Technology (NIST) recently released SRM 2386 Avocado Powder which has value assignment for over 70 analytes. This

Certification of Standard Reference Material® 955d, Toxic Elements and Metabolites in Frozen Human Blood

Author(s)
Lee L. Yu, Karen E. Murphy, Colleen E. Bryan Sallee, Thomas W. Vetter, Robert C. Hagwood, George C. Caceres, Stephen E. Long, J M. Jarrett, M A. Franklin, J Castro Georgi, D M. Jones, Robert Jones, Z Li, Y L. Sommer, D S. Tevis, K Wallon, C D. Ward, M Maras, S Erdahl, C Gilmer, M Wermers, H Woldeysus, K F. Mehigan, M Morrissette, Christopher D. Palmer, Patrick J. Parsons
Standard Reference Material (SRM) 955d is intended for use in validating analytical methods for measuring toxic elements and mercury species in human blood, and

Determining what really counts: Modeling and measuring nanoparticle number concentrations

Author(s)
Elijah J. Petersen, Antonio R. Montoro Bustos, Blaza Toman, Monique E. Johnson, Mark Ellefson, George C. Caceres, Anna Lena Neuer, Qilin Chan, Jonathan Kemling, Brian Mader, Karen E. Murphy, Matthias Roesslein
Elijah J. Petersen, Antonio Montoro Bustos, Blaza Toman, Monique Johnson, Mark Ellefson, George C. Caceres, Anna Lena Neuer, Qilin Chan, Jonathan Kemling, Brian
Created May 7, 2019, Updated April 17, 2024