Extracts of impact breccia samples from Sudbury, Gardnos, and Ries impact craters and the effects of aggregation on C60 detection

Elsila, Jamie E.; Leon, Nathalie P. de; Plows, Fiona L.; Buseck, Peter R.; Zare, Richard N.

doi:10.1016/j.gca.2004.11.023

Cited by 13 publications

(13 citation statements)

References 49 publications

(85 reference statements)

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“…In our experimental setup, we deposited 2 lL aliquots of 27 lM C 60 in toluene on the sample chip and optimized the laser intensity. The operating condition was found to be near 3000 nJ per pulse and is in the same range as laser intensities used in previous successful analyses of C 60 in natural samples in our laboratory (Elsila et al, 2005). The results presented in Figs.…”

Section: Fig 2 Presents the Results From Ldms Investigations Ofmentioning

confidence: 70%

“…Their results indicate that the small recovery yields for low-level fullerenes are caused by destruction of the fullerenes by some as-yet-unknown mechanism. Laser desorption laser ionization mass spectrometry (L 2 MS) analysis of the Allende and Tagish Lake IOM revealed them to be free from large polycyclic aromatic hydrocarbons (Plows et al, 2003), although L 2 MS lacks the ability to validate that all of the extractable fullerenes had been removed from the IOM (Elsila et al, 2005). L 2 MS, which is a gentle desorption process without the formation of a plasma, is less prone to generating complex species than LDMS, as recently demonstrated in studies on asphaltenes (Pomerantz et al, 2008).…”

Section: Fig 2 Presents the Results From Ldms Investigations Ofmentioning

confidence: 99%

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Identifying the source of a strong fullerene envelope arising from laser desorption mass spectrometric analysis of meteoritic insoluble organic matter

Hammond

Zare

2008

Geochimica et Cosmochimica Acta

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Section: Fig 2 Presents the Results From Ldms Investigations Ofmentioning

confidence: 70%

Section: Fig 2 Presents the Results From Ldms Investigations Ofmentioning

confidence: 99%

Identifying the source of a strong fullerene envelope arising from laser desorption mass spectrometric analysis of meteoritic insoluble organic matter

Hammond

Zare

2008

Geochimica et Cosmochimica Acta

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“…Phthalic acid esters, more commonly known as phthalates, are ubiquitous environmental contaminants, typically introduced to samples such as these via the containers in which they are stored or through contact with tainted solvents (e.g., Elsila et al. ). Terrestrial phthalate esters were also found in the DCM extracts of 5b and 11i, but not in 11h (Hilts et al.…”

Section: Contaminant Organic Compounds In the Tagish Lake Meteoritementioning

confidence: 99%

Cold curation of pristine astromaterials: Insights from the Tagish Lake meteorite

Herd

Hilts

Skelhorne

et al. 2016

Meteorit & Planetary Scien

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Abstract-The curation and handling of volatile-bearing astromaterials is of prime importance in current and future plans for sample return missions to targets containing organic compounds, ices, or other volatile components. We report on the specific curation constraints required for the preservation of the Tagish Lake meteorite, a C2 ungrouped chondrite that contains significant concentrations of organic matter, including compounds of prebiotic interest or volatile in character, and which was recovered from a frozen lake surface a few days after its fall. Here, we review the circumstances of the meteorite's handling, its complement of intrinsic and contaminant organic compounds, and an unusual reaction between some of the specimens and the Al foil in which they were enclosed. From our results, we derive the requirements for curation of the meteorite, and describe a specialized facility that enables its curation and handling. The Subzero Facility for Curation of Astromaterials consists of a purified Ar glove box enclosed within a freezer chamber, and enables investigations relevant to curation of samples at or below À10°C. We provide several recommendations based on insights obtained from the commissioning and initial use of the facility that are relevant to collection of freshly fallen meteorites, curation of volatilebearing meteorites and other astromaterials, and planning and implementation of curation plans for future sample return missions to volatile-bearing targets.

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“…Following the discovery of C 60 , a wide range of laser vaporization mass spectrometric studies were conducted on BC-containing material. Most of these studies utilized single wavelength, high intensity pulsed lasers for desorption and ionization, which have been shown to directly influence the measured carbon cluster ion distributions; in particular, the distribution of fullerene species (Elsila et al 2005;Spencer et al 2008). Previous studies have shown that various carbon materials undergo temperature-driven annealing or graphitizing to different extents (i.e., graphitizing and non-graphitizing carbon) (Harris 2005).…”

Section: Introductionmentioning

confidence: 99%

Investigations of SP-AMS Carbon Ion Distributions as a Function of Refractory Black Carbon Particle Type

Onasch

Fortner

Trimborn³

et al. 2015

Aerosol Science and Technology

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The soot particle aerosol mass spectrometer (SP-AMS) instrument combines continuous wave laser vaporization with electron ionization aerosol mass spectrometry to characterize airborne, refractory black carbon (rBC) particles. The laser selectively vaporizes absorbing rBC-containing particles, allowing the SP-AMS to provide direct chemical information on the refractory and non-refractory chemical components, providing the potential to fingerprint various rBC particle types. In this study, SP-AMS mass spectra were measured for 12 types of rBC particles produced by industrial and combustion processes to explore differences in the carbon cluster (C n C ) mass spectra. The C n C mass spectra were classified into three categories based on their ion distributions, which varied with rBC particle type. The carbon ion distributions were investigated as a function of laser power, electron ionization (on/off), and ion charge (positive or negative). Results indicate that the dominant positive ion-formation mechanism is likely the vaporization of small, neutral carbon clusters followed by electron ionization (C 1 C to C 5 C ). Significant ion signal from larger carbon cluster ions (and their fragment ions in the small carbon cluster range), including mid carbon (C 6 C to C 29 C ) and fullerene (greater than C 30 C ) ions, were observed in soot produced under incomplete combustion conditions, including biomass burning, as well as in fullerene-enriched materials. Fullerene ions were also observed at high laser power with electron ionization turned off, formed via an additional ionization mechanism. We expect this SP-AMS technique to find application in the identification of the source and atmospheric history of airborne ambient rBC particles.

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Extracts of impact breccia samples from Sudbury, Gardnos, and Ries impact craters and the effects of aggregation on C60 detection

Cited by 13 publications

References 49 publications

Identifying the source of a strong fullerene envelope arising from laser desorption mass spectrometric analysis of meteoritic insoluble organic matter

Identifying the source of a strong fullerene envelope arising from laser desorption mass spectrometric analysis of meteoritic insoluble organic matter

Cold curation of pristine astromaterials: Insights from the Tagish Lake meteorite

Investigations of SP-AMS Carbon Ion Distributions as a Function of Refractory Black Carbon Particle Type

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