Search Results - "Eyama, Sakae"

Application of amino acid analysis using hydrophilic interaction liquid chromatography coupled with isotope dilution mass spectrometry for peptide and protein quantification by Kato, Megumi, Kato, Hisashi, Eyama, Sakae, Takatsu, Akiko

“…Amino acid analysis that is based on the use of hydrophilic interaction liquid chromatography (HILIC) coupled with isotope dilution mass spectrometry (IDMS)…”
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Concentration Measurement of Amino Acid in Aqueous Solution by Quantitative 1H NMR Spectroscopy with Internal Standard Method by YAMAZAKI, Taichi, EYAMA, Sakae, TAKATSU, Akiko

“…We describe a procedure to determine concentrations of amino acid standard solutions by quantitative NMR spectroscopy using an internal standard. The…”
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Development of High-purity Certified Reference Materials for 17 Proteinogenic Amino Acids by Traceable Titration Methods by KATO, Megumi, YAMAZAKI, Taichi, KATO, Hisashi, EYAMA, Sakae, GOTO, Mari, YOSHIOKA, Mariko, TAKATSU, Akiko

“…To ensure the reliability of amino acid analyses, the National Metrology Institute of Japan of the National Institute of Advanced Industrial Science and…”
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Determination of selenium in sediment by isotope-dilution inductively coupled plasma mass spectrometry with an octapole reaction cell by Inagaki, Kazumi, Takatsu, Akiko, Nakama, Atsuko, Eyama, Sakae, Yarita, Takashi, Okamoto, Kensaku, Chiba, Koichi

“…A method is described for determination of selenium in sediment by isotope-dilution inductively coupled plasma mass spectrometry with an octapole reaction cell…”
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Certified sediment reference materials for trace element analysis from the National Metrology Institute of Japan (NMIJ) by Inagaki, Kazumi, Takatsu, Akiko, Kuroiwa, Takayoshi, Nakama, Atsuko, Eyama, Sakae, Chiba, Koichi, Okamoto, Kensaku

“…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…”
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Automated isotope dilution liquid chromatography–tandem mass spectrometry with on-line dilution and solid phase extraction for the measurement of cortisol in human serum sample by Kawaguchi, Migaku, Eyama, Sakae, Takatsu, Akiko

“…•Automated analysis.•We use empty column for the online dilution.•Simply and high sensitivity.•High accuracy. A candidate reference measurement procedure…”
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Development of SI-traceable C-peptide certified reference material NMIJ CRM 6901-a using isotope-dilution mass spectrometry-based amino acid analyses by Kinumi, Tomoya, Goto, Mari, Eyama, Sakae, Kato, Megumi, Kasama, Takeshi, Takatsu, Akiko

“…A certified reference material (CRM) is a higher-order calibration material used to enable a traceable analysis. This paper describes the development of a…”
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Concentration Measurement of Amino Acid in Aqueous Solution by Quantitative 1 H NMR Spectroscopy with Internal Standard Method by Yamazaki, Taichi, Eyama, Sakae, Takatsu, Akiko

“…We describe a procedure to determine concentrations of amino acid standard solutions by quantitative NMR spectroscopy using an internal standard. The…”
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Preparation and certification of creatinine and urea reference materials with certified purity as a traceability source in clinical chemical measurements by Takatsu, Akiko, Eyama, Sakae, Saeki, Mika

“…Purity certified reference materials (CRMs) are playing a key role in metrological traceability, because they form the basis for many traceability chains in…”
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Quantification of an Oligonucleotide Containing a Sequence Failure Product: Comparison of Isotope Dilution Mass Spectrometry with other Quantification Methods by Kinumi, Tomoya, Narukawa, Tomohiro, Fujii, Shin-Ichiro, Eyama, Sakae, Saeki, Mika, Takatsu, Akiko

“…There is an increasing demand to develop a method for accurate quantification of DNA. Because current methods such as the ultraviolet (UV) absorption-based…”
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Aluminum in lake water and organs of a fish Tribolodon hakonensis in strongly acidic lakes with a high aluminum concentration by Takatsu, A., Eyama, S., Tsunoda, K., Satake, K., Uchiumi, A., Ezoe, Y.

“…Aluminum in lake water and in the organs of the fish Tribolodon hakonensis was investigated in Lake Usoriko (pH 3.6), Lake Inawashiroko (pH 5.0), and the…”
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