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  1. No Access

    Article

    Applications and Uncertainty Estimation of Single Level Standard Addition Method ICP-MS for Elemental Analysis in Various Matrix

    The standard addition method (SAM) based on gravimetric sample preparation was investigated as an approach for the removal or cancelling of matrix effects in measurements by inductively coupled plasma mass spe...

    Yanbei Zhu, Kazumi Nakano, Zhongyuan Wang, Yasuyuki Shikamori… in Analytical Sciences (2018)

  2. No Access

    Article

    Development of a Certified Reference Material (NMIJ CRM 7203-a) for Elemental Analysis of Tap Water

    A certified reference material (CRM), NMIJ CRM 7203-a, was developed for the elemental analysis of tap water. At least two independent analytical methods were applied to characterize the certified value of eac...

    Yanbei Zhu, Tomohiro Narukawa, Kazumi Inagaki, Shin-ichi Miyashita… in Analytical Sciences (2017)

  3. No Access

    Article

    Identification of possible technical problems in determination of the major inorganic constituents of brown-rice flour by evaluating proficiency test results

    To support skill upgrading in analysis of inorganic constituents of environmental and food samples, the National Metrology Institute of Japan (NMIJ) and the National Food Research Institute (NFRI) have organiz...

    Shin-ichi Miyashita, Kazumi Inagaki… in Analytical and Bioanalytical Chemistry (2013)

  4. No Access

    Article

    Development of a Certified Reference Material (NMIJ CRM 7512-a) for the Determination of Trace Elements in Milk Powder

    A certified reference material (CRM), NMIJ CRM 7512-a, was developed for the determination of trace elements in milk powder. At least three independent analytical methods were applied to characterize the certi...

    Yanbei Zhu, Tomohiro Narukawa, Shin-ichi Miyashita… in Analytical Sciences (2013)

  5. No Access

    Article

    Development of a Certified Reference Material (NMIJ CRM 7531-a) for the Determination of Trace Cadmium and Other Elements in Brown Rice Flour

    A certified reference material (CRM) for trace cadmium and other elements in brown rice flour was developed at the National Metrology Institute of Japan (NMIJ). The CRM was provided as a dry powder after dryin...

    Shin-ichi Miyashita, Kazumi Inagaki, Tomohiro Narukawa, Yanbei Zhu… in Analytical Sciences (2012)

  6. Article

    Erratum to: Preparation and certification of Hijiki reference material, NMIJ CRM 7405-a, from the edible marine algae hijiki (Hizikia fusiforme)

    Tomohiro Narukawa, Kazumi Inagaki, Yanbei Zhu… in Analytical and Bioanalytical Chemistry (2012)

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  7. No Access

    Article

    Preparation and certification of Hijiki reference material, NMIJ CRM 7405-a, from the edible marine algae hijiki (Hizikia fusiforme)

    A certified reference material, NMIJ CRM 7405-a, for the determination of trace elements and As(V) in algae was developed from the edible marine hijiki (Hizikia fusiforme) and certified by the National Metrology ...

    Tomohiro Narukawa, Kazumi Inagaki, Yanbei Zhu… in Analytical and Bioanalytical Chemistry (2012)

  8. No Access

    Article

    Development of a Certified Reference Material (NMIJ CRM 7505-a) for the Determination of Trace Elements in Tea Leaves

    A certified reference material (CRM) for trace elements in tea leaves has been developed in National Metrology Institute of Japan (NMIJ). The CRM was provided as a dry powder (<90 μm) after frozen pulverizatio...

    Yanbei Zhu, Tomohiro Narukawa, Kazumi Inagaki, Takayoshi Kuroiwa… in Analytical Sciences (2011)

  9. No Access

    Article

    Preparation and certification of arsenate [As(V)] reference material, NMIJ CRM 7912-a

    Arsenate [As(V)] solution reference material, National Metrology Institute of Japan (NMIJ) certified reference material (CRM) 7912-a, for speciation of arsenic species was developed and certified by NMIJ, the ...

    Tomohiro Narukawa, Takayoshi Kuroiwa… in Analytical and Bioanalytical Chemistry (2010)

  10. No Access

    Article

    Instrumental neutron activation analysis of hafnium in zirconium metal using internal standardization

    Instrumental neutron activation analysis with the internal standard correction was applied to determination Hf in high purity Zr metal. Zirconium, which was a matrix element, was used as an internal standard t...

    Tsutomu Miura, Hideaki Matsue… in Journal of Radioanalytical and Nuclear Che… (2009)

  11. No Access

    Article

    Precise Determination of Cr and Co in Certified Reference Material of Silicon Nitride by Neutron Activation Analysis Using Internal Standardization

    Neutron activation analysis with an internal standard correction was applied to the determination of Cr and Co in a ceramics certified reference material (NMIJ CRM 8004-a silicon nitride powder). Cesium was us...

    Tsutomu Miura, Hideaki Matsue, Takayoshi Kuroiwa, Koichi Chiba in Analytical Sciences (2009)

  12. No Access

    Article

    Certification of methylmercury in cod fish tissue certified reference material by species-specific isotope dilution mass spectrometric analysis

    A new cod fish tissue certified reference material, NMIJ CRM 7402-a, for methylmercury analysis was certified by the National Metrological Institute of Japan in the National Institute of Advanced Industrial Sc...

    Kazumi Inagaki, Takayoshi Kuroiwa… in Analytical and Bioanalytical Chemistry (2008)

  13. No Access

    Article

    Effect of the Chemical Species of Arsenic on Sensitivity in Graphite Furnace Atomic Absorption Spectrometry

    The sensitivity of graphite furnace atomic absorption spectrometry (GFAAS) to arsenobetaine (AB) was 1.3-times higher than to inorganic As. In order to understand the mechanism underlying this observation, the...

    Tomohiro Narukawa, Takayoshi Kuroiwa, Izumi Narushima, Koichi Chiba in Analytical Sciences (2008)

  14. No Access

    Article

    Preparation and certification of arsenobetaine reference material NMIJ CRM 7901-a

    An arsenobetaine [(CH3)3As+CH2COO−] solution reference material, NMIJ CRM 7901-a, intended for use in the speciation of arsenic compounds, was developed and certified by the National Metrology Institute of Japan ...

    Tomohiro Narukawa, Koichi Chiba… in Analytical and Bioanalytical Chemistry (2007)

  15. No Access

    Article

    Certified sediment reference materials for trace element analysis from the National Metrology Institute of Japan (NMIJ)

    Two types of sediment reference material (NMIJ 7302-a and 7303-a) for trace elements analysis have been prepared and certified by the National Metrology Institute of Japan in the National Institute of Advanced...

    Kazumi Inagaki, Akiko Takatsu, Takayoshi Kuroiwa… in Analytical and Bioanalytical Chemistry (2004)

  16. No Access

    Article

    Certification of mono-, di-, and tributyltin compounds in marine sediment certified reference material by species-specific isotope dilution mass spectrometric analysis using synthesized 118Sn-labeled butyltins

    A new marine sediment reference material (NMIJ CRM 7301-a) for butyltins analysis was prepared and certified by the National Metrological Institute of Japan, National Institute of Advanced Industrial Science a...

    Kazumi Inagaki, Akiko Takatsu, Takuro Watanabe… in Analytical and Bioanalytical Chemistry (2004)