A Report on the Certification of an Absolute Molecular Mass Distribution Polymer Standard: Standard Reference Material 2881
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Bester Preis: € 13,17 (vom 14.04.2017)1
A Report on the Certification of an Absolute Molecular Mass Distribution Polymer Standard
EN NWISBN: 9781493754373 bzw. 1493754378, in Englisch, Createspace, neu.
Lieferung aus: Vereinigtes Königreich Großbritannien und Nordirland, in-stock.
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.
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.
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A Report on the Certification of an Absolute Molecular Mass Distribution Polymer Standard: Standard Reference Material 2881
EN PB NWISBN: 9781493754373 bzw. 1493754378, in Englisch, CreateSpace Publishing, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, In Stock.
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