Results 31 to 40 of about 3,686 (163)

Tapping the archives: The sterol composition of marine sponge species, as determined non-invasively from museum preserved specimens, reveals biogeographical features [PDF]

, 2016
Over 8600 species are currently recorded in the phylum Porifera (sponges). They produce a large diversity of biochemical compounds including sterols, with more than 250 different sterols identified.
Adahchour, Antcliffe, Bergmann, Bergquist, Bergquist, Bergquist, Cimino, Crist, D'Auria, Djerassi, Eiserbeck, Eiserbeck, Erpenbeck, Fromont, Fromont, Gauvin, Genta-Jouve, Giner, Goad, Gold, Hofheinz, Kelly, Kerr, Kerr, Liu, Love, Love, Marney, McCaffrey, Minale, Mitrevski, Naeher, Ourisson, Popov, Proudfoot, Reddy, Redmond, Reichenbach, Rosa, Santalova, Silva, Silva, Silva, Soest, Stoilov, Stoilov, Thacker, Truong, Wahid Khalil, Webster, Wörheide   +50 more
core   +1 more source

Analysis of Polycyclic Aromatic Hydrocarbons in Ambient Aerosols by Using One-Dimensional and Comprehensive Two-Dimensional Gas Chromatography Combined with Mass Spectrometric Method: A Comparative Study

Journal of Analytical Methods in Chemistry, 2018
Advanced separation technology paired with mass spectrometry is an ideal method for the analysis of atmospheric samples having complex chemical compositions.
Yun Gyong Ahn, So Hyeon Jeon, Hyung Bae Lim, Na Rae Choi, Geum-Sook Hwang, Yong Pyo Kim, Ji Yi Lee   +6 more
doaj   +1 more source

Detection and Characterization of Ignitable Liquid Residues in Forensic Fire Debris Samples by Comprehensive Two-Dimensional Gas Chromatography

Separations, 2018
This study covers an extensive experimental design that was developed for creating simulated fire debris samples under controlled conditions for the detection and identification of ignitable liquids (IL) residues.
Andjoe A. S. Sampat, Brenda van Daelen, Martin Lopatka, Hans Mol, Guido van der Weg, Gabriel Vivó-Truyols, Marjan Sjerps, Peter J. Schoenmakers, Arian C. van Asten   +8 more
doaj   +1 more source

Comprehensive Profiling of Terpenes and Terpenoids in Different Cannabis Strains Using GC × GC-TOFMS

Separations, 2023
Cannabis contains a wide range of terpenes and terpenoids that are mainly responsible for their distinctive aroma and flavor. These compounds have also demonstrated therapeutic effects either alone and/or as synergistic compounds with other terpenes ...
Jasmeen Kaur, Ning Sun, Jane E. Hill
doaj   +1 more source

In vitro volatile organic compound profiling using GCGC-TOFMS to differentiate bacteria associated with lung infections: A proof-of-concept study [PDF]

, 2016
© 2016 IOP Publishing Ltd. Chronic pulmonary infections are the principal cause of morbidity and mortality in individuals with cystic fibrosis (CF).
Forbes, SL, Iredell, JR, Middleton, PG, Nizio, KD, Perrault, KA, Shoma, S, Troobnikoff, AN, Ueland, M   +7 more
core   +1 more source

Oxidative stress in asthmatic and non-asthmatic adolescent swimmers - a breathomics approach [PDF]

, 2017
We hypothesize that oxidative stress induced by trichloramine exposure during swimming could be related to etiopathogenesis of asthma among elite swimmers.
Barbosa, C, Couto, M, Delgado, L, Moreira, A, Rocha, SM, Rudnitskaya, A, Silva, D   +6 more
core   +1 more source

Energy Metabolism Under Stress: Late-Stage Leigh Syndrome Reveals Profound Cardiometabolic Perturbations in Ndufs4 KO Mice. [PDF]

J Inherit Metab Dis
Cardiac bioenergetic and metabolic perturbations in late‐stage Leigh syndrome. Whole‐body NDUFS4 loss severely impairs cardiac complex I activity and respiration, shifting reliance to complex II and reducing glycolytic, TCA, and amino acid‐derived energy‐generating substrates in the heart.
Terburgh K, Sweeney N, Louw R.
europepmc   +2 more sources

Ribose and related sugars from ultraviolet irradiation of interstellar ice analogues [PDF]

, 2016
International audienceThis folder includes:*Supplementary Material (.pdf)(Materials and Methods, Figs. S1–S6, Table S1, caption for movie S1)Other supplementary materials available for this manuscript: *Movie S1 (.mp4)*GC×GC chromatograms of ice sample ...
Buhse, Thomas, de Marcellus, Pierre, Hoffmann, Søren V., Le Sergeant D’hendecourt, Louis, Meierhenrich, Uwe J., Meinert, Cornelia, Myrgorodska, Iuliia, Nahon, Laurent   +7 more
core   +4 more sources

Characterization of Pyrolysis Oils Using a Combination of GC×GC/TOFMS and GC/HRMS Analysis: The Impact of Data Processing Parameters

Separations
Human population growth and increasing transportation demands have led to rising global tire consumption and associated waste. In response, various material and energy recovery strategies, such as pyrolysis, have been developed to produce high-value ...
Xiangdong Chen, Carlos Rincon, Benoît Gadenne, José Dugay, Michel Sablier, Jérôme Vial   +5 more
doaj   +1 more source

Analysis of Organic Sulphur Compounds in Coal Tar by Using Comprehensive Two-Dimensional Gas Chromatography-High Resolution Time-of-Flight Mass Spectrometry

Separations, 2020
Coal tar is a complex mixture of organic compounds obtained from the thermal treatment of coal; it contains several different chemical classes of compounds, such as polycyclic aromatic hydrocarbons, phenols and different heterocyclic compounds including ...
Ivan Aloisi, Mariosimone Zoccali, Peter Q. Tranchida, Luigi Mondello   +3 more
doaj   +1 more source