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Postdoctoral Fellow (PREP0004858)

Johns Hopkins University
Gaithersburg, United Statesfull_timeVerifiedPosted 30 Jun 2026

About the role

Description

PREP Research Associate

 

This position is part of the National Institute of Standards and Technology (NIST) Professional Research Experience Program (PREP). NIST recognizes that its research staff may want to collaborate with researchers at academic institutions on specific projects of mutual interest and, therefore, requires those institutions to be recipients of a PREP award. The PREP program involves staff from a wide range of backgrounds conducting scientific research across various fields. Individuals in this position will perform technical work supporting the collaboration's scientific research. 

 

Research Title:

Single Particle Mass Metrology

 

The work will entail: 

The candidate will perform postdoctoral research at NIST to characterize the mass of single microscopic particles individually and in ensembles. A working knowledge of single particle mass spectrometry is required, as is basic physics. The researcher will perform theoretical and laboratory work to develop optimum methods for measuring the mass of the particles, including radionuclide samples. Advanced uncertainty analysis will be required to provide a mass value and model-based uncertainty using multiple methods to cross-check. These methods may include mass spectrometry and inertial balance development and prototype instrumentation construction or modification.

 

U.S. Citizen Required


Key responsibilities will include but are not limited to:

  • Documentation of measurement method development data
  • Determination of SI-traceability path and uncertainty analysis
  • Work with hazardous chemicals, including radionuclides

§  Presenting results at internal meetings, and occasional meetings with external stakeholders.

§  Ensuring that results, protocols, software, and documentation have been archived or otherwise transmitted to the larger organization.

§  Generating a final deliverable of a particle mass measurement.anroom facility (www.nist.gov/cnst)

Qualifications

§  PhD in chemistry or physics, analytical chemistry preferred

§  5 years of relevant experience.

§  Knowledge of traceability and standards development.

§  Hands-on laboratory skills, including prototype equipment development.

§  Familiarity with advanced data analysis.

§  Ability to develop prototypes of tools needed to analyze data.

§  Strong oral and written communication skills.

Application Instructions

Please upload the following with your application:

 

·       CV/Resume

*Please limit C.V to 3 pages only and ONLY include a valid email address for your contact info. Your resume will not be considered if the following information is included on your CV/resume.

·       Self portraits

·       Phone number

·       Home address/Country

·       Citizenship status

·       Languages spoken

·       Sex/Gender

·        

 

 

PRIVACY ACT STATEMENT

Authority:  15 U.S.C. § 278g-1(e)(1) and (e)(3) and 15 U.S.C. § 272(b) and (c)

Purpose:  The National Institute for Standards and Technology (NIST) hosts the  Professional Research Experience Program (PREP), which is designed to provide valuable laboratory experience and financial assistance to undergraduates, post-bachelor’s degree holders, graduate students, master’s degree holders, postdocs, and faculty.  

PREP is a 5-year cooperative agreement between NIST laboratories and participating PREP Universities to establish a collaborative research relationship between NIST and U.S. institutions of higher education in the following disciplines including (but may not be limited to) bi

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Company

Johns Hopkins University

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