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  • 1
    facet.materialart.
    Unbekannt
    Collection data, 16S microbiome and metabolome of Geodia barretti, Stryphnus fortis and Weberella bursa, in the Davis Strait (2019)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-25
    Beschreibung: Collection data of the marine sponge specimens studied; three species: Geodia barretti, Stryphnus fortis and Weberella bursa. Collection data includes locality, depth, salinity, bottom temperature, gear, date, cruise and station# and a collection number for every specimen (DFO Canada collections). NCBI SRA# of the 16S gene amplicon sequencing of their microbiome. Numbers of the UPLC-HRMS runs (four different modes for every specimen: HILIC+, HILIC-, RP+ and RP-). The raw UPLC-HRMS datasets are deposited in the repository metabolights (www.ebi.ac.uk/metabolights/MTBLS1388). QC runs are Quality Control runs for the UPLC-HRMS experiment (also deposited in metabolights).
    Schlagwort(e): Accession number, genetics; Code; Cruise/expedition; DATE/TIME; Deep-sea; Deep-sea Sponge Grounds Ecosystems of the North Atlantic; DEPTH, water; Event label; Gear; Geodia barretti; Identification; LATITUDE; LONGITUDE; marine sponges; metabolomics; microbiome; PAA2011007; PAA2011007_Gb10; PAA2011007_Gb15; PAA2011007_Gb20; PAA2011007_Gb21; PAA2011007_Gb4; PAA2011007_Gb6; PAA2011007_Sf11; PAA2011007_Sf14; PAA2011007_Sf4; PAA2011007_Sf7; PAA2011007_Wb10; PAA2011007_Wb12; PAA2011007_Wb14; PAA2011007_Wb15; PAA2011007_Wb2; PAA2011007_Wb5; PAA2011007_Wb9; PAA2013008; PAA2013008_Gb1; PAA2013008_Gb12; PAA2013008_Gb14; PAA2013008_Gb18; PAA2013008_Gb19; PAA2013008_Gb2; PAA2013008_Gb8; PAA2013008_Gb9; PAA2013008_Sf10; PAA2013008_Sf13; PAA2013008_Sf2; PAA2013008_Sf6; PAA2013008_Wb1; PAA2013008_Wb11; PAA2013008_Wb16; PAA2013008_Wb17; PAA2013008_Wb4; PAA2013008_Wb8; PAA2014007; PAA2014007_Gb13; PAA2014007_Gb3; PAA2014007_Gb5; PAA2014007_Sf1; PAA2014007_Sf12; PAA2014007_Sf15; PAA2014007_Sf3; PAA2014007_Sf5; PAA2014007_Wb13; PAA2014007_Wb3; PAA2014007_Wb6; PAA2014007_Wb7; PAA2015007; PAA2015007_Gb11; PAA2015007_Gb17; PAA2015007_Gb7; PAA2015007_Sf8; PAA2015007_Sf9; Paamiut; Salinity; Set; Species; SponGES; Stryphnus fortis; Temperature, water; Weberella bursa; Year of observation
    Materialart: Dataset
    Format: text/tab-separated-values, 739 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 2
    Digitale Medien
    Digitale Medien
    Immobilized cellulase (CBH I) as a chiral stationary phase for direct resolution of enantiomers (1990)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 112 (1990), S. 4573-4574 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja00167a081
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 3
    Digitale Medien
    Digitale Medien
    Chiral separation of amines using reversed-phased ion-pair chromatography (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 5 (1993), S. 241-245 
    Details
    ISSN: 0899-0042
    Schlagwort(e): chiral counterion ; reversed-phase chiral ion-pair chromatography ; diastereomeric ion-pairs ; chiral mobile phase additive ; (-)-2,3:4,6,-di-O-isopropylidene-2-keto-L-gulonic acid ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The direct separation of enantiomeric amines has been carried out using a chiral counter ion, (-)-2,3:4,6,-di-O-isopropylidene-2-keto-L-gulonic acid [(-)-DIKGA] dissolved in polar mobile phases, water:methanol or isopropanol:acetonitrile. High separation factors, α = 1.2-1.7, were obtained for several compounds of pharmacological interest such as metoprolol, oxprenolol, remoxipride, mefloquine and p-OH-ephedrine. © 1993 Wiley-Liss, Inc.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/chir.530050410
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Unexpected difference in enantioselective retention on cellulase (CBH I) silica stationary phase caused by exchange of potassium for sodium ion in the mobile phase (1998)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 10 (1998), S. 513-518 
    Details
    ISSN: 0899-0042
    Schlagwort(e): CBH I ; cellulase ; cation ; sodium ; potassium ; enantioselectivity and temperature ; ionic strength ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: An increase in both retention and enantioselectivity for some β-blocking agents was observed when exchanging potassium to sodium ion in the buffer used as mobile phase. A large effect of ionic strength on retention was observed, while the enantioselectivity was constant. Chirality 10:513-518, 1998. © 1998 Wiley-Liss, Inc.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
  • 5
    Digitale Medien
    Digitale Medien
    An unexpected temperature effect obtained on enantiomer separation using CBH i-silica as a chiral stationary phase: Increase in retention and enantioselectivity at elevated column temperature: A chromatographic and microcalorimetric study (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 4 (1992), S. 505-508 
    Details
    ISSN: 0899-0042
    Schlagwort(e): cellulase ; CBH I-silica ; temperature dependent enantioselectivity ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/chir.530040808
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    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Enantiomeric separations of remoxipride, propranolol, and trimipramine on CHIRAL-AGP using micellar chromatography and anionic additives (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 5 (1993), S. 224-228 
    Details
    ISSN: 0899-0042
    Schlagwort(e): chiral resolution ; hydrophobic amines ; α1-acid glycoprotein ; Tween® 20 ; anionic additives ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The retentions and enantiomeric resolutions of remoxipride, propranolol, and trimipramine were studied using a CHIRAL-AGP column with micellar mobile phases and aliphatic, anionic additives. The retentions of the compounds, which in neat buffer solution were very high (k′ 〉 50), could be decreased to k′ 〈 10 by adding a mixture of Tween® 20 and heptanoic acid to the mobile phase. The presence of the aliphatic acid was essential in order to increase the enantiomeric selectivity. An efficiency enhancement was obtained by increasing the temperature. With a mobile phase composition optimized for the separation of remoxipride, the possibility of detecting levels of the enantiomeric impurity (R-remoxipride) down to 0.025% in the drug was demonstrated. © 1993 Wiley-Liss, Inc.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/chir.530050406
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    (R)- and (S)-5-hydroxy-2-(dipropylamino)tetralin (5-OH DPAT): Assessment of optical purities and dopaminergic activities (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 2 (1990), S. 90-95 
    Details
    ISSN: 0899-0042
    Schlagwort(e): stereoselectivity ; 5-OH DPAT ; dopamine D2-receptor antagonist ; chiral ion pair chromatography ; N-benzyloxycarbonylglycyl-L-proline (L-ZGP) ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Racemic 5-hydroxy-2-(dipropylamino)tetralin (5-OH DPAT), a potent and selective dopamine (DA) D2-receptor agonist, was resolved into the enantiomers by a new method. The enantiomers of 5-OH DPAT were determined by chiral ion-pair chromatography using N-benzyloxycarbonylglycyl-L-proline as the counter ion. The enantiomeric purity of (R)-5-OH DPAT was found to be 〉 99.7%. The ability of the enantiomers to change the rat brain DOPA levels was evaluated in vivo. The results indicate that (R)-5-OH DPAT is a weakly potent DA D2-receptor antagonist.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/chir.530020206
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  • 8
    Digitale Medien
    Digitale Medien
    Retention model for the resolved enantiomers of felodipine on chiral-AGP using micellar mobile phases (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 7 (1995), S. 23-27 
    Details
    ISSN: 0899-0042
    Schlagwort(e): felodipine ; retention model ; micellar mobile phases ; chiral resolution ; CHIRAL-AGP ; Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: A retention model for the chiral separation of an uncharged solute, felodipine, on CHIRAL-AGP, using a micellar mobile phase is proposed. The model assumes the presence of two stereoselective sites and each enantiomer was found to interact with different sites. Addition of a chiral aliphatic alcohol, (+)-(S)-2-octanol, preferentially interacted with the binding site for (-)-(S)-felodipine. The monomeric form of the micellar agent (Tween® 20) competed with the enantiomers for the adsorption sites, and the formation of a 1:1 complex between the enantiomers and the micelles was assumed. The retention of the solutes was effectively controlled by adding small quantities (〈1.63 × 10-3 M) of the nonionic detergent Tween 20 to the mobile phase. Baseline separation was achieved by addition of 1.0 mM n-octylamine to the mobile phase; 8.14 × 10-4 M Tween 20 in phosphate buffer pH 7.0. The separation factor (α = 1.74) was unaffected by the detergent concentration in the presence of 1.0 mM n-octylamine. © 1995 Wiley-Liss, Inc.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/chir.530070105
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  • 9
    Digitale Medien
    Digitale Medien
    Optimization of the chiral resolution of four hydrophobic amines on CHIRAL-AGP by a central composite face design (CCF) (1995)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 352 (1995), S. 705-711 
    Details
    ISSN: 1618-2650
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract A three-factor central composite face design (CCF) has been used for the optimization of the chiral resolution of the enantiomers of alprenolol, oxprenolol, trimipramine and propranolol on CHIRAL-AGP. The variables (factors) investigated were pH and concentrations of the micellar agent Tween® 20 and heptanoic acid. The responses evaluated were resolution (RS), capacity factor (k′) of the last eluted enantiomer and a chromatographic response function (CRF) defined as CRF = P5/log tret, where P is the peak-valley ratio according to Kaiser and tret is the retention time. The computed models, one for each substance and one for each response (in total 12 models), showed that the main factor for the regulation of RS as well as k′ and CRF in the experimental domain is the pH. The optimal pH for the substances could be found between pH 5.5 and 6.5. The optimum was evaluated by generating contour plots for the CRF models. The computed mathematical models were statistically evaluated and the predictive power of the models was tested by experimentation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00323052
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  • 10
    Digitale Medien
    Digitale Medien
    Enantioresolution of disopyramide by capillary affinity electrokinetic chromatography with human α1-acid glycoprotein (AGP) as chiral selector applying a partial filling technique (1997)
    Weinheim : Wiley-Blackwell
    Electrophoresis 18 (1997), S. 950-957 
    Details
    ISSN: 0173-0835
    Schlagwort(e): Enantioseparation ; α1-Acid glycoprotein ; Capillary zone electrophoresis ; Disopyramide ; Partial filling technique ; Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: A method using α1-acid glycoprotein (AGP) as chiral selector for disopyramide by means of affinity electrokinetic chromatography has been developed. In order to avoid UV absorbance interferences, less than the effective length of the capillary was filled with the chiral selector. The electrophoretic conditions were chosen to give opposite migration directions for the chiral selector and the analyte; AGP migrated away from the detector. Enantiomers of disopyramide were separated on a methylcellulose-coated capillary with 20 cm length to the detector. The enantioresolution of the solute was affected by the concentration of the chiral selector, the plug length of the selector in the capillary, and the applied voltage. Resolution factors and migration times decreased with reduction of the plug length, while the efficiency of the separation system and peak performance were improved by decreasing the separation zone. A special feature of the technique is an enhanced selectivity due to increasing separation of the enantiomers when the fastest has migrated from the selector zone, while the second one still is retained. Equations relating selectivity and resolution with the difference in effective plug lengths between the two enantiomers are developed. Optimized conditions yielding complete resolution, requiring an 0.75 mM AGP plug of only 4.5 cm effective length, also gave high efficiencies (about 400 000 plates/m) for both enantiomer peaks.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/elps.1150180616
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