Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    On the origin of cells determined to form skeletal muscle in avian embryos (1988)
    Springer
    Anatomy and embryology 179 (1988), S. 49-54 
    Details
    ISSN: 1432-0568
    Keywords: Embryo ; Quail ; Chicken ; Skeletal muscle ; Determination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Pieces of quail embryos from various developmental stages ranging from unincubated blastoderms (before the appearance of a primitive streak) to embryos having formed somites were grafted to the wing buds or into the coelomic cavity of chicken embryos. The grafts, which can be identified on a cellular level by virtue of the prominent nucleolus-associated chromatin, present in the quail and absent in the chicken, were screened after suitable periods of reincubation for the presence or absence of skeletal myotubes containing quail nuclei. Grafts having contributed to such skeletal myotubes were considered as having contained determined myogenic cells at the time of the grafting procedure. Determined myogenic cell appeared first in the primitive streak and in the mesodermal cells formed by the invagination (gastrulation) of epiblastic cells through the primitive streak. This is true for both the head process and the paraxial mesoderm. Epiblastic cells never gave rise to skeletal myotubes. Therefore it can be said, that the onset of myogenic determination coincides with gastrulation. It remains, however, to be established, whether these two events are causally related to one another.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00305099
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Direktechtscharlach SE und Diazoechtgrün 2 GL als Redoxindicatoren in der Cerimetrie (1981)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 308 (1981), S. 31-31 
    Details
    ISSN: 1618-2650
    Keywords: Verwendung von Direktechtscharlach SE und Diazoechtgrün 2 GL als Redoxindicatoren ; Cerimetrie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00487831
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Spektralphotometrische Bestimmung von Eisen(III) und Chrom(VI) mit Helasolviolett 4R (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 294 (1979), S. 285-285 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Eisen(III), Chrom(VI) mit Helasolviolett 4R ; Spektralphotometrie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00481653
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Fluorimetric determination of sebacic acid with resorcinol (1967)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 230 (1967), S. 431-433 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00507865
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Spektralphotometrische Methode zur Bestimmung von Palladium(II) mit Hilfe von Eriochromazurol B und Cetyltrimethylammoniumbromid (1983)
    Springer
    Microchimica acta 80 (1983), S. 181-185 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary A new spectrophotometric method for determination of Pd(II) by means of eriochromazurol B (CAB) with mediation of cetyltrimethylammonium bromide (CTMA) was described. The PD complex showed an extinction maximum at 625 nm at pH 5.5. The Beer's law is fulfilled in the range 2–10μg Pd/10 ml; the molar extinction coefficient is 1.15·105l·mol−1·cm−1, the sensitivity 0.93·10−3 μg Pd/cm2. The composition of the complex corresponds to Pd∶CAB∶CTMA=1∶2∶4; the conditional stability constant is 6.3·1011. The influence of foreign ions was checked.
    Notes: Zusammenfassung Eine neue spektrophotometrische Methode zur Bestimmung von Pd(II) mit Hilfe von Eriochromazurol B (CAB) unter Mitwirkung von Cetyltrimethylammoniumbromid (CTMA) wurde beschrieben. Der Pd-Komplex zeigt bei pH 5,5 ein Extinktionsmaximum bei 625 nm. Das Beersche Gesetz ist im Bereich 2–10μg Pd/10 ml erfüllt; der molare Extinktionskoeffizient beträgt 1,15·105l·mol−1· cm−1, die Empfindlichkeit 0,93·10−3 μg Pd/cm2. Die Zusammensetzung des Komplexes entspricht Pd∶CAB∶CTMA=1∶2∶4; die bedingte Stabilitätskonstante beträgt 6,3·1011. Der Einfluß von Fremdionen wurde geprüft.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01213111
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Flotations-spektrophotometrische Methode zur Bestimmung von Zirkonium mittels Eriochromazurol B (1982)
    Springer
    Microchimica acta 78 (1982), S. 83-88 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary A flotation spectrophotometric method for determining zirconium in steels by means of the disodium salt of 2″, 6″-dichloro-4′-hydroxy-3,3′-dimethylfuchsone-5, 5′-dicarbonic acid (CAB) was worked out. The molar extinction coefficient is 3.3×104. The specific absorption wasa=0.33. The advantage of the method is the possibility of determining zirconium(IV) besides the hundredfold amount of Hf(IV).
    Notes: Zusammenfassung Eine flotations-spektrophotometrische Methode zur Bestimmung des Zirkoniums in Stählen mittels des Dinatriumsalzes der 2″,6″-Dichlor-4′-hydroxy-3, 3′-dimethylfuchson-5,5′-dicarbonsäure (CAB) wurde ausgearbeitet. Der molare Extinktionskoeffizient beträgt 3,3×104, die spezifische Absorptiona=0,33. Der Vorteil der bearbeiteten Methode ist die Möglichkeit, Zirkonium (IV) neben der hundertfachen Menge Hf(IV) zu bestimmen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01206693
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...