†Nuclear Physics Institute of the Academy of Sciences of the Czech Republic, Husinec-Řež 130, CZ-250 58, Czech Republic.
‡Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia.
Anal Chem. 2015 Apr 7;87(7):3699-705. doi: 10.1021/ac504094n. Epub 2015 Mar 20.
Instrumental neutron activation analysis with both relative and k0 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 γ 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.
采用相对和 k0 标准化的仪器中子活化分析方法，在四个有经验的实验室中用于测定单壁碳纳米管认证参考物质（CRM）SWCNT-1 中元素的质量分数。使用美国国家标准与技术研究院（NIST）的“B 型偏倚”方法对获得的结果进行评估，并与加拿大国家研究委员会（NRCC）对 Fe、Co、Ni 和 Mo 的认证值达成共识，为另外 13 种元素提供了质量分数值，即 Na、Mg、Al、K、Ca、Ti、V、Cr、Mn、Br、La、W 和 Au。此外，还采用瞬发γ中子活化分析来测定 H、B、Co、Ni 和 Mo 的质量分数。这项工作的结果为在 CRM SWCNT-1 中建立元素质量分数的参考值提供了基础，从而扩展了其在更准确表征和基准测试类似纳米技术材料方面的可用性。
