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Rapid Assessment of High Value Samples: A Miniature AOTF-LDTOF Spectrometer Suite for Planetary Surfaces

N. J. Chanover, David A. Glenar, David Voelz, Xiang Xiao, Rula Tawalbeh, Penelope J. Boston, Stephanie Getty, W. B. Brinckerhoff, P. R. Mahaffy, Inge ten Kate, A. C. McAdam

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Abstract

We discuss the development of a miniature nearinfrared point spectrometer, operating in the 1.7-4µm region, based on acousto-optic tunable filter (AOTF) technology. This instrument may be used to screen and corroborate analyses of samples containing organic biomarkers or mineralogical signatures suggestive of extant or extinct organic material collected in situ from planetary surfaces. The AOTF point spectrometer will be paired with a laser desorption time-offlight (LDTOF) mass spectrometer and will prescreen samples for evidence of volatile or refractory organics before the laser desorption and subsequent mass spectrometer measurement. We present laboratory analysis of geological samples of known astrobiological importance, with and without organic biomarkers.

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What this paper is about

We discuss the development of a miniature nearinfrared point spectrometer, operating in the 1.7-4µm region, based on acousto-optic tunable filter (AOTF) technology. This instrument may be used to screen and corroborate analyses of samples containing organic biomarkers or mineralogical signatures suggestive of extant or extinct organic material collected in situ from planetary surfaces. The AOTF point spectrometer will be paired with a laser desorption time-offlight (LDTOF) mass spectrometer and will prescreen samples for evidence of volatile or refractory organics before the laser desorption and subsequent mass spectrometer measurement. We present laboratory analysis of geological samples of known astrobiological importance, with and without organic biomarkers.

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Available abstract

We discuss the development of a miniature nearinfrared point spectrometer, operating in the 1.7-4µm region, based on acousto-optic tunable filter (AOTF) technology. This instrument may be used to screen and corroborate analyses of samples containing organic biomarkers or mineralogical signatures suggestive of extant or extinct organic material collected in situ from planetary surfaces. The AOTF point spectrometer will be paired with a laser desorption time-offlight (LDTOF) mass spectrometer and will prescreen samples for evidence of volatile or refractory organics before the laser desorption and subsequent mass spectrometer measurement. We present laboratory analysis of geological samples of known astrobiological importance, with and without organic biomarkers.

Key concepts: Spectrometer, Mass spectrometry, Laser, Analytical Chemistry (journal), Extant taxon, Remote sensing, Imaging spectrometer, Optics

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Rapid Assessment of High Value Samples: A Miniature AOTF-LDTOF Spectrometer Suite for Planetary Surfaces — Research Paper | ScholarLens