Development of a Wide-Spectrum Organic Analysis Instrument

Metadata Updated: February 28, 2019

Modifying a two-step laser mass spectrometer (ultra-L2MS) to enable in situ micrometer-scale analysis of diverse organic molecules with sub-femtomole sensitivity. With previous IRD support we designed and constructed a vacuum ultraviolet (VUV) laser source, which enables efficient, soft, single-photon ionization of organic molecules. We incorporated this VUV ion source with our instrument and have successfully measured hundreds of organic molecules on test samples. The modified instrument is unique and enables the measurement of organic molecules with an unprecedented combination of sensitivity and spatial resolution.In FY'13 we expanded our analysis of samples to include astromaterials and biological materials relevant to international space station (ISS) and human space flight (HSF). We are also in the process of integrating our existing UV laser photoionization source with the new VUV source to enable both to be operated simultaneously. By combining VUV photons with UV/Visible photons we can explore the use of novel two-photon (118.2 nm + 1064/532/355/266 nm) resonant and non-resonant ionization schemes. By timing the photons from both sources to arrive simultaneously in the ionization region of the ultra-L2MS instrument we can further the expanding of the range of detectable molecular species. Additionally by allowing a controlled delay between the arrival of photons from the two sources (time-delayed two-photon ionization) it may also be possible to provide structural information for certain molecular species that could not be provided by conventional mass spectrometry techniques. 

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_12114
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id b3c984e9-6063-4f36-abac-f31dd9a6fcbe
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2013-09-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash d2154f4dfeb9068ca1cc5616414fb6d94eb0f401
Source Schema Version 1.1

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