Laser desorption sample transfer for gas chromatography/mass spectrometry

Seneviratne, Chinthaka A.; Ghorai, Suman; Murray, Kermit K.

doi:10.1002/rcm.7419

Cited by 5 publications

(3 citation statements)

References 60 publications

(119 reference statements)

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“…Small molecules were captured from laser desorption and transferred to a solid phase microextraction (SPME) fiber for subsequent GC-MS analysis by Seneviratne et al Their technique was reported to simplify ambient ionization of complex mixtures of small molecules. Bernier et al developed an instrument (Figure ) that was capable of analyzing both air and water samples to improve air quality monitoring onboard the International Space Station .…”

Section: Discharge-based Ambient Ionizationmentioning

confidence: 99%

Advances in Ionization for Mass Spectrometry

Peacock¹,

Zhang

Trimpin

2016

Anal. Chem.

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Section: Discharge-based Ambient Ionizationmentioning

confidence: 99%

Advances in Ionization for Mass Spectrometry

Peacock¹,

Zhang

Trimpin

2016

Anal. Chem.

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“…Laser-induced fluorescence (LIF) is able to locate and quantify organic compounds (Fisk et al, 2003). Gas chromatography (GC)-coupled laser spectroscopy can vaporize rock surfaces by laser beams, followed by gas separation by GC, to measure the abundances of elemental isotopes in spectrometers (Seneviratne et al, 2016). Laser-induced breakdown spectroscopy (LIBS) is a powerful tool to effectively determine a large range of light and heavy elements (Xu WM et al, 2021).…”

Section: Laser and Raman Spectroscopymentioning

confidence: 99%

Detection of biosignatures in terrestrial Mars analogs: Strategical and technical assessments

Shen¹,

Chen²,

Sun³

et al. 2022

Earth and Planetary Physics

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The search for potential signs of Martian life has been planned and implemented by worldwide countries for decades. Due to the high expenditure on Mars exploration, more easily accessible Marslike regions on Earth are invaluable targets for astrobiology research to understand the detection of potential Martian biosignatures. In order to detect potential life signals beyond Earth, questions on how to define life and biosignatures need to be carefully inspected. This review summarizes scientific instrumental techniques, our "eyes" and "hands", that facilitate identifying and quantifying biosignatures on Mars. Scientific devices that can be applied in astrobiology include electromagnetic spectrum-based spectrometers, mass spectrometers, redox potential indicators, circular dichroism polarimeters, in situ nucleic acid sequencers, life isolation/cultivation systems, and imagers. These techniques should be first tested in Mars analog extreme environments on Earth to validate their practicality on Mars. To better understand the instrumental detectability of biosignatures on Mars through its evolutionary history, terrestrial Mars analogs are divided into four major categories according to their similarities to different geological ages of Mars (the Early-Middle Noachian Period, the Late Noachian-Early Hesperian Period, the Late Hesperian-Early Amazonian Period, and the Middle-Late Amazonian Period). Future missions are suggested to explore more on the early terrains in Mars' Southern Hemisphere once the landing issue is solved engineeringly, since these explorations permit investigating a continuum of the habitability shift through Mars geological history. Moreover, practical applications of scientific instruments listed above are briefly reviewed based on the four categories of Mars analogs, and instruments applied for autonomous robotic rover tests in Mars analogs are further discussed. For engineering efficiency, a Mars rover ought to be equipped with as few assemblable instruments as possible. Therefore, once candidate landing regions 1 Biosignatures in Mars analogson Mars are defined, the portable suites of instruments should be smartly devised on the basis of the geological, geochemical, geomorphological, and chronological characteristics of the landing regions. Laboratory-based experiments without engineering restrictions are further encouraging and appealing if Mars sample-return missions are successfully completed. To exclude false positive and false negative conclusions in life discovery, the combined use and replication studies of multiple analytical techniques must be performed to confirm the observational results.

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“…Interestingly, laser desorption ionization (LDI) approaches were exclusively implemented for the direct coupling of SPME fibers to mass spectrometry [56,57]. Considering the flat and smooth surfaces that are characteristic of TFME, its implementation can improve not only the reproducibility of the determinations but also the simplicity of laser focus in different areas of the coating.…”

Section: Accepted Manuscript 14mentioning

confidence: 99%

Thin film microextraction: Towards faster and more sensitive microextraction

Ölçer

Tascón

Eroğlu

et al. 2019

TrAC Trends in Analytical Chemistry

163

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Thin film microextraction (TFME) is an analytical tool that has been proven to be suitable for integrated sampling and sample preparation of a wide variety of routine and on-site applications.Compared to the traditional microextraction techniques, the most important advantage of TFME is its enhanced sensitivity due to the relatively larger extractive phase spread over a larger surface area.The technique, in this way, facilitates fast extraction kinetics and high extractive capacity. Moreover, TFME offers high versatility for device development over classical SPME technologies due to the plethora of available extractive phases, coating methods and geometry options. The goal of this review is to provide a comprehensive summary of the contemporary advances in this exciting field covering novel extractive phases, technological and methodological developments, and relevant cutting-edge applications. Finally, a critical discussion of the future trends on TFME is also presented.

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Laser desorption sample transfer for gas chromatography/mass spectrometry

Cited by 5 publications

References 60 publications

Advances in Ionization for Mass Spectrometry

Advances in Ionization for Mass Spectrometry

Detection of biosignatures in terrestrial Mars analogs: Strategical and technical assessments

Thin film microextraction: Towards faster and more sensitive microextraction

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