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  • Analytical Chemistry and Spectroscopy  (4)
  • Spiders/*physiology  (1)
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  • 1
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    Questioning evidence of group selection in spiders (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-08-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grinsted, Lena -- Bilde, Trine -- Gilbert, James D J -- England -- Nature. 2015 Aug 27;524(7566):E1-3. doi: 10.1038/nature14595.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Life Sciences, University of Sussex, John Maynard Smith Building, Brighton BN1 9QG, UK. ; Department of Bioscience, Aarhus University, Ny Munkegade 116, building 1540, 8000 Aarhus C, Denmark. ; School of Biological, Biomedical and Environmental Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26310770" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Aggression/*physiology ; Animals ; *Biological Evolution ; Female ; *Selection, Genetic ; Spiders/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Determination of L-654,066, a new 5α-reductase inhibitor in plasma by liquid chromatography/atmospheric pressure chemical ionization mass spectrometry (1992)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 21 (1992), S. 341-346 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: L-654,066 is a new 5α-reductase inhibitor. A sensitive and specific assay based on combined liquid chromatography/mass spectrometry has been developed for the determination of this drug candidate in plasma.The analyte was isolated from plasma by solid-phase extraction on a C-18 cartridge. A related substance, L-683,838, was used as the internal standard. Extracts were chromatographed on a 5 cm C18 reverse-phase high-performance liquid chromatography column interfaced via the heated nebulizer probe to a corona discharge chemical ionization source.The mass spectrometer was operated in the positive ion tandem mode. The method has sufficient sensitivity, precision, accuracy and selectivity for the analysis of clinical samples containing L-654,066 at concentrations in the range 0.5-20 ng ml-1. The chromatographic run time is less than 2 min.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200210704
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of MK-287, a new platelet-activating factor antagonist, in plasma and serum by gas chromatography chemical ionization mass spectrometry (1991)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 20 (1991), S. 408-414 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: MK-287 is a novel platelet-activating factor antagonist. A sensitive and specific gas chromatographic/mass spectro-metric assay has been developed for the determination of the drug in serum and plasma. The assay utilizes an extraction with methyl-t-butyl ether and subsequent trimethylsilylation of the hydroxyl function. The gas chromatographic/mass spectrometric determinations are carried out with temperature-programmed capillary gas chro-matography and ammonia negative chemical ionization mass spectrometry. The method has sufficient sensitivity, precision, accuracy and selectivity for the analysis of drug concentrations in clinical samples.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200200703
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  • 4
    Electronic Resource
    Electronic Resource
    Determination of L-365,260, a new cholecystokinin receptor (CCK-B) antagonist, in plasma by liquid chromatography/atmospheric pressure chemical ionization mass spectrometry (1992)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 21 (1992), S. 63-68 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: L-365,260 is a novel cholecystokinin receptor antagonist. A sensitive and specific liquid chromatographic/mass spectrometric assay has been developed for the determination of the drug in plasma using the CD3-labeled species as the internal standard. Plasma extracts were separated on a 3 cm C18 reverse-phase high-performance liquid chromatography column. The column eluate passed, by means of a heated nebulizer interface, into a corona discharge atmospheric chemical ionization source. The mass spectrometer was operated in the positive ion tandem mass spectrometric mode. The method has sufficient sensitivity, specificity, precision, accuracy and selectivity for the determination of drug concentrations in clinical samples. The chromatographic run time is less than 2 min.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200210202
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  • 5
    Electronic Resource
    Electronic Resource
    Determination of the HMG-CoA reductase inhibitors simvastatin, lovastatin, and pravastatin in plasma by gas chromatography/chemical ionization mass spectrometry (1993)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 22 (1993), S. 1-8 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A general method for the assay of the 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors lovastatin, pravastatin, and simvastatin in plasma has been developed and validated. The analytes are isolated from plasma by a solid-phase extraction procedure which separates the lactone and acid forms of the drugs. The lactone is converted to the acid form, which is subsequently derivatized by pentafluorobenzylation of the carboxyl group, and trimethylsilylation of the hydroxyl functions. Derivatized samples of intrinsic and converted acid are assayed by gas chromatography/mass spectrometry using negative chemical ionization mass spectrometry. The method has sufficient sensitivity, precision, accuracy, and selectivity for the analysis of clinical samples containing the drugs administered at therapeutic doses. The method thus permits determination of both the lactone and hydroxy acid forms of lovastatin and simvastatin, and is also applicable to the assay of pravastatin.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200220102
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