Sökning: id:"swepub:oai:DiVA.org:nrm-2876" >
Chemical and optica...
Chemical and optical identification of micrometer sized 1.9 Ga old fossils with a miniature LIMS system combined with an optical microscope
-
- Wiesendanger, Reto (författare)
- Research and Planetary Sciences Physics Institute University of Bern Sidlerstrasse 5Bern CH-3012 Switzerland
-
- Wacey, David (författare)
- Centre for Microscopy Characterisation and Analysis, The University of Western Australia, Perth, Australia
-
- Tulej, Marek (författare)
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
-
visa fler...
-
- Neubeck, Anna (författare)
- Naturhistoriska riksmuseet,Enheten för paleobiologi
-
- Ivarsson, Magnus, 1975- (författare)
- Naturhistoriska riksmuseet,Enheten för paleobiologi,University of Southern Denmark, Department of Biology and Nordic Center for Earth Evolution, Campusvej 55, Odense M, DK-5230, Denmark
-
- Grimaudo, V. (författare)
- Department of Chemistry and Biochemistry, Interfacial Electrochemistry Group, University of Bern, Bern, Switzerland
-
- Moreno-Garcia, P. (författare)
- Department of Chemistry and Biochemistry, Interfacial Electrochemistry Group, University of Bern, Bern, Switzerland
-
- Cedeῆo López, A. (författare)
- Department of Chemistry and Biochemistry, Interfacial Electrochemistry Group, University of Bern, Bern, Switzerland
-
- Riedo, Andreas (författare)
- Sackler Laboratory for Astrophysics, Leiden Observatory, Leiden University, The Netherlands
-
- Wurz, Peter (författare)
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
-
visa färre...
-
(creator_code:org_t)
- USA : Mary Ann Liebert Inc, 2018
- 2018
- Engelska.
-
Ingår i: Astrobiology. - USA : Mary Ann Liebert Inc. - 1531-1074 .- 1557-8070. ; 18:8, s. 1071-1080
- Relaterad länk:
-
https://www.liebertp...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The recognition of biosignatures on planetary bodies requires the analysis of the putative microfossil with a set of complementary analytical techniques. This includes localized elemental and isotopic analysis of both the putative microfossil and its surrounding host matrix. If the analysis can be performed with spatial resolution at the micrometer level and part-per-million detection sensitivities, valuable information on the (bio)chemical and physical processes that influenced the sample material can be gained. Our miniaturized laser ablation ionization mass spectrometry (LIMS)-time-of-flight mass spectrometer instrument is a valid candidate for performing the required chemical analysis in situ. However, up until now it was limited by the spatial accuracy of the sampling. In this contribution, we introduce a newly developed microscope system with micrometer accuracy for ultra high vacuum application, which allows a significant increase in the measurement capabilities of our miniature LIMS system. The new enhancement allows identification and efficient and accurate sampling of features of micrometer-sized fossils in a host matrix. The performance of our system is demonstrated by the identification and chemical analysis of signatures of micrometer-sized fossil structures in the 1.9 billion-year-old Gunflint chert.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- The changing Earth
- Den föränderliga jorden
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Wiesendanger, Re ...
-
Wacey, David
-
Tulej, Marek
-
Neubeck, Anna
-
Ivarsson, Magnus ...
-
Grimaudo, V.
-
visa fler...
-
Moreno-Garcia, P ...
-
Cedeῆo López, A.
-
Riedo, Andreas
-
Wurz, Peter
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Geovetenskap och ...
-
och Annan geovetensk ...
- Artiklar i publikationen
-
Astrobiology
- Av lärosätet
-
Naturhistoriska riksmuseet