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  • Digitale Medien  (2)
  • 2,2,2-trifluoroethanol  (1)
  • Congo red  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Diagnosis of colorectal tumors by the endoscopic Congo red-methylene blue test (1994)
    Springer
    Surgical endoscopy and other interventional techniques 8 (1994), S. 1308-1311 
    Details
    ISSN: 1432-2218
    Schlagwort(e): Colorectal tumors ; Congo red ; Methylene blue ; Chromoendoscopy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The endoscopic Congo red-methylene blue test was performed on 51 tumors of the large intestine. Results revealed that colorectal adenocarcinomas and adenomas bleached the Congo red and methylene blue sprayed over their surface and so appeared in sharp contrast to the bluish red mucosa of unaffected areas. No bleaching of the dyes was observed on the surface of non-neoplastic polyps. Moderately differentiated adenocarcinomas, submucosal or advanced cancers, and adenomas with severe atypia bleached the dyes most frequently. Thus this test facilitates early detection of colorectal tumors.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00188289
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Intramolecular and liquid structure of 2,2,2-trifluoroethanol by X-ray diffraction (1989)
    Springer
    Journal of solution chemistry 18 (1989), S. 771-784 
    Details
    ISSN: 1572-8927
    Schlagwort(e): Liquid structure ; x-ray diffraction ; 2,2,2-trifluoroethanol ; organic solvents
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract Intramolecular and liquid structure of 2,2,2-trifluoroethanol (TFE) have been investigated by x-ray diffraction at 25°C. The structural parameters for the skeleton of the molecules in the liquid phase are similar to those in the gas phase. The conformers of TFE molecules in the liquid phase are discussed. The O...O distance at about 284 pm and additional F...O one at about 302 pm were found to be characteristic for the first neighbor interactions. Various models (dimers and trimers) have been examined for analyzing the first neighbor structure. The liquid structure was explained in terms of small clusters consisting of two to three molecules rather than of a more extended polymeric network.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00651809
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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