期刊
ANALYTICAL CHEMISTRY
卷 87, 期 7, 页码 3699-3705出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac504094n
关键词
-
资金
- Czech Science Foundation [P108/12/G108]
Instrumental neutron activation analysis with both relative and k(0) standardization was used in four experienced laboratories to determine element mass fractions in single-wall carbon nanotube certified reference material (CRM) SWCNT-1. Results obtained were evaluated using the National Institute of Standards and Technology (NIST) Type B On Bias approach and yielded consensus values in agreement with National Research Council Canada (NRCC) certified values for Fe, Co, Ni, and Mo and provided mass fraction values for 13 additional elements, namely, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Br, La, W, and Au. In addition, prompt ? neutron activation analysis was employed to determine mass fractions of H, B, Co, Ni, and Mo. Results of this work provide a basis for the establishment of reference values of element mass fractions in CRM SWCNT-1, thus expanding its usability for more accurate characterization and benchmarking of similar nanotechnology materials.
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