A Report on the Certification of an Absolute Molecular Mass Distribution Polymer Standard: Standard Reference Material 2881

Published

September 11, 2008

Author(s)

Charles M. Guttman, Kathleen M. Flynn, William E. Wallace, Anthony J. Kearsley

Abstract

The certification of an absolute molecular mass distribution polymer Standard Reference Material, SRM 2881, is described. SRM 2881 is an n octyl initiated, proton terminated, narrow polydispersity, low mass, atactic polystyrene. The absolute molecular mass distribution (MMD) was obtained by matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS). The certification includes estimates of uncertainties, both Type A (random) and Type B (systematic), for each oligomer in the sample having a concentration of at least 0.18% of the total of all oligomers on the low mass tail of the MMD and 0.02% on the high mass tail. The bottle-to-bottle variation of the packaged SRM was checked by size exclusion chromatography and found to be negligible.

Citation

NIST Interagency/Internal Report (NISTIR) - 7512

Report Number

7512

Volume

7512

NIST Pub Series

NIST Interagency/Internal Report (NISTIR)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.IR.7512

Local Download

Keywords

mass spectrometry, molecular mass distribution, polymer, polystyrene, standard reference material, SRM

Citation

Guttman, C. , Flynn, K. , Wallace, W. and Kearsley, A. (2008), A Report on the Certification of an Absolute Molecular Mass Distribution Polymer Standard: Standard Reference Material 2881, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.7512, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854031 (Accessed December 12, 2024)