2004
DOI: 10.1016/j.chroma.2004.08.004
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Combination of gas chromatography–mass spectrometry and mass spectral deconvolution for structural elucidation of an unusual C29-steroid detected in a complex sedimentary matrix

Abstract: A complex sedimentary sample from the Monterey Formation (CA, USA) has been submitted to GC-MS analysis followed by mass spectral deconvolution using Automated Mass Spectral Deconvolution and Identification System (AMDIS). Adjusting the parameters of the software allowed for the extraction of the spectrum of an unusual steroidal hydrocarbon coeluting with the major compound of the chromatogram. Following a careful interpretation of the "extracted" mass spectrum, the structure of the unknown has been postulated… Show more

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Cited by 10 publications
(3 citation statements)
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“…Based on the deconvolution criteria of AMDIS, it is clear that the difference in scan number (retention time) of overlapping peaks is a key parameter influencing the deconvolution capability. Finck et al 10. successfully extracted ‘purified’ spectra from an unusual steroidal hydrocarbon when there was a sufficient difference in scan number.…”
Section: Resultsmentioning
confidence: 99%
“…Based on the deconvolution criteria of AMDIS, it is clear that the difference in scan number (retention time) of overlapping peaks is a key parameter influencing the deconvolution capability. Finck et al 10. successfully extracted ‘purified’ spectra from an unusual steroidal hydrocarbon when there was a sufficient difference in scan number.…”
Section: Resultsmentioning
confidence: 99%
“…The “non-aromatic hydrocarbon” fraction was dissolved in 50 µl of hexane before injection of a 1 µL aliquot. Automated Mass Spectral Deconvolution and Identification System software (AMDIS), version 2.1, provided by the National Institute of Standards and Technology (NIST, Gaithersburg, MD USA, web address: ) has been used for post-processing the MS data files [ 60 ].…”
Section: Methodsmentioning
confidence: 99%
“…The characteristic base structure of bacteriohopanols. In our research group various research subjects including C 29 -steroid detection in complex sedimentary 4 , aromatic stereoids in recent sediments 5 , carboxylic acids 6 , sedimentary occurrence of chlorophyllone 7 , steryl chlorin esters 8 and tetrapyrolic pigments 9 have already been studied in detail with diver's sediment samples.…”
Section: Introductionmentioning
confidence: 99%