Toshiki Koga

8PUBLICATIONS
106CO-AUTHORS
Exploration geochemistryEnvironmental biogeochemistryMeteorologyMineralogy and crystallographyNatural products and bioactive compounds
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Publications (8)

|Apr 02, 2026
Distribution of extraterrestrial nucleobases, other N-heterocycles, and their precursors in a sample from asteroid Bennu.

Yasuhiro Oba, Toshiki Koga, Yoshinori Takano

|Sep 22, 2025
Analytical Development for Detecting Femtomole-Level Organophosphorus Compounds in Biogeochemical Samples by Ion Chromatography/High-Resolution Mass Spectrometry.

Yuta Hirakawa, Toshiki Koga, Takahiro Suzuki

|Feb 24, 2025
Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu.

Daniel P Glavin, Jason P Dworkin, Conel M O'D Alexander

|Sep 05, 2024
Breunnerite grain and magnesium isotope chemistry reveal cation partitioning during aqueous alteration of asteroid Ryugu.

Toshihiro Yoshimura, Daisuke Araoka, Hiroshi Naraoka

|Jul 10, 2024
Primordial aqueous alteration recorded in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu.

Yoshinori Takano, Hiroshi Naraoka, Jason P Dworkin

|Dec 21, 2023
Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium.

Sarah S Zeichner, José C Aponte, Surjyendu Bhattacharjee

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Frequent Collaborators

7 joint publications

Yoshinori Takano

6 joint publications

Yasuhiro Oba

6 joint publications

Jason P Dworkin

5 joint publications

Nanako O Ogawa