Methodologies articles

Working standards and analytical framework for CSIA: isotopic composition (δ¹³C, δ¹⁵N, and δ³⁴S) of 21 amino acids and 7 nucleobases

Nanako O OGAWA, Yoshinori Takano, Yu Itahashi, Naoto F Ishikawa, Naohiko Ohkouchi

Purification of hydroxyproline for small-scale radiocarbon dating verified using archaeological bone collagen

Yu Itahashi, Yoshinori Takano, Yoshito Chikaraishi, Nanako O. Ogawa, Naoto F. Ishikawa, Naohiko Ohkouchi, Masako Yamane, Yusuke Yokoyama, Minoru Yoneda

Nanomolar-scale Sulfate Sulfur Isotope Analysis Using a Combined Ion Chromatography-Barite Precipitation and nano-EA/IRMS

Nanako O OGAWA, Toshihiro Yoshimura, Takeru Kochi, Junichiro Kuroda, Yoshinori Takano, Naohiko Ohkouchi

Challenges in extraction and quantification of cellulose from deep-sea sediments

Noriyuki Isobe, Sachiko Kawada, Yuto Kaku, Kiyohiko Igarashi

Chromatographic isolation for performing enantiomer-specific radiocarbon analysis (ESRA): first method development for individual L- and D-amino acids

Thomas M. Blattmann, Yuchen Sun, Nanako O. Ogawa, Yoshinori Takano, Negar Haghipour, Naoto F. Ishikawa, Timothy I. Eglinton, Naohiko Ohkouchi

Energy dissipation caused by impact or slow compression of dust aggregates consisting of fibers

Shiori Iwano, Rena Tanaka, Hiroaki Katsuragi

Scanning SQUID microscope system for geological samples: further system improvements and development of post-processing software

Hirokuni Oda, Jun Kawai, Miki Kawabata, Naoto Fukuyo, Akihiro Tanimoto, Isao Yosano, Chisato Anai

DiallelX: a modern fortran code for calculating network cross-correlation

Shiro Hirano, Makoto Naoi

Development of a high-resolution ocean ensemble future projection dataset for the North Pacific incorporating simple biogeochemical processes

Shiro Nishikawa, Toru Sugiyama, Masao Kurogi, Hiroyuki Tsujino, Hideyuki Nakano, Yoichi Ishikawa

A protocol and analysis of year-long simulations of global storm-resolving models and beyond

Daisuke Takasuka, Masaki Satoh, Tomoki Miyakawa, Chihiro Kodama, Daniel Klocke, Bjorn Stevens, Pier Luigi Vidale, Christopher R. Terai