ArticleMeteoritics & planetary science2018
Effect of polychromatic x-ray microtomography imaging on the amino acid content of the Murchison CM chondrite.
Article in Meteoritics & planetary science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 26 citations in OpenAlex.
- Uncovering the chiral bias of meteoritic isovaline through asymmetric photochemistry.Nature communications · 2023Article
- Analytical protocols for Phobos regolith samples returned by the Martian Moons eXploration (MMX) mission.Earth, planets, and space : EPS · 2021Article
- Extraterrestrial hexamethylenetetramine in meteorites-a precursor of prebiotic chemistry in the inner solar system.Nature communications · 2020Article
- Extraterrestrial ribose and other sugars in primitive meteorites.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Methodologies for Analyzing Soluble Organic Compounds in Extraterrestrial Samples: Amino Acids, Amines, Monocarboxylic Acids, Aldehydes, and Ketones.Life (Basel, Switzerland) · 2019Review
- Effect of polychromatic x-ray microtomography imaging on the amino acid content of the Murchison CM chondrite.Meteoritics & planetary science · 2018Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
X-ray microcomputed tomography is a useful means of characterizing cosmochemical samples such as meteorites or robotically returned samples. However, there are occasional concerns that the use of μCT may be detrimental to the organic components of a chondrite. Small organic compounds such as amino acids comprise up to ~10% of the total solvent extractable carbon in CM carbonaceous chondrites. We irradiated three samples of the Murchison CM carbonaceous chondrite under conditions akin to and harsher than those typically used during typical benchtop x-ray μCT imaging experiments to determine if detectable changes in the amino acid abundance and distribution relative to a non-exposed Murchison control sample occurred. After subjecting three meteorite samples to ionizing radiation dosages between ~300 Gray (Gy) and 3 kGy with bremstrahlung X-rays, we analyzed the amino acid content of each sample. Within sampling and analytical errors, we found no differences in the amino acid abundances and amino acid enantiomeric ratios when comparing the control samples (non-exposed Murchison) and the irradiated samples. We conclude that a polychromatic X-ray μCT experiment has no detectable effect on the amino acid content of a CM type carbonaceous chondrite.
Indexed as
Identifiers
31806926PMC6894160W2888585591What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.