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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 324-324 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It was found that m-nitro cinnamic acid not only gives a clear-cut separation of thorium from other trivalent rare-earth ions, but also gives a thorium precipitate of definite composition. The precipitated thorium salt is the tetra-m-nitro cinnamate and is one of the very few examples of ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 34 (1978), S. 1002-1005 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 34 (1978), S. 2038-2040 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 980-984 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 47 (1959), S. 766-769 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Eine kolorimetrische Methode für die direkte Bestimmung von Chrom(III)-ionen wurde beschrieben. Hierzu dient die gefärbte Verbindung mit Komplexen IV (o-Cyklohexandiamintetraessigsäure). Da Bichromat die Reaktion nicht stört, läßt sich Chrom(III) in dessen Gegenwart bestimmen. Die Farbreaktion entspricht zwischen4 und 80 μg/ml dem Beerschen Gesetz. Die Farbebleibt wenigstens für eine Woche stabil.
    Abstract: Résumé Description d'une méthode colorimétrique directe pour la détermination de l'ion chrome trivalent. On emploie à cette fin le complexe coloré qui se forme avec le complexon IV («Acide Chenta »). Le bichromate ne gêne pas et il en résulte que le chrome trivalent peut être déterminé en présence de ce dernier. Le complexe obéit à la loi de Béer entre les limites de 4 à 80 μg/ml et sa couleur est stable pendant au moins une semaine.
    Notes: Summary A direct colorimetric method for the determination of the trivalent chromium ion is described. This utilises the coloured complex formed with Complexone IV (“Chenta Acid”). There is no interference from dichromate, and trivalent chromium can therefore be determined in the presence of the latter ion. The complex obeys Beer's Law over the range 4–80 μg/ml, and the colour is stable for one week.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 51 (1963), S. 395-396 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zusatz von Thiosalicylsäure und Cyanid erlaubt den Nachweis von Bi in Gegenwart von Ag, Sn und Pb.
    Abstract: Résumé L'acide thiosalicylique et les cyanures permettent de déceler le bismuth en présence d'Ag, Sn et Pb.
    Notes: Summary Thiosalicylio acid and cyanide permit detecting Bi in presence of Ag, Sn, and Pb.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Garlic has been used in herbal medicine for thousands of years. While garlic oil contains many components and has been widely studied, the pharmacology of pure allicin, a constituent of garlic oil, is not well understood. We report that allicin inhibits human platelet aggregationin vitro without affecting cyclooxygenase or thromboxane synthase activity or cyclic adenosine monophosphate (AMP) levels. Allicin does not alter the activity of vascular prostacyclin synthase. However, it inhibits ionophore A23187-stimulated human neutrophil lysosomal enzyme release.In vivo allicin dilates the mesenteric circulation of the cat independent of prostaglandin release or a beta adrenergic mechanism.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 211 (1965), S. 265-274 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zur dokimastischen Anreicherung von μg und mg-Mengen Iridium wird Kupfer anstelle von Blei empfohlen, da die Anwesenheit von Übergangsmetallen hierbei nicht stört. Gegenüber der Verwendung einer Kupfer-Nickel-Eisenlegierung können niedrigere Temperaturen benutzt werden. Maximale Ausbeuten wurden mit sauren Schlacken mit einem Silicatgehalt von 3,0% erhalten. Die Ursache kleiner Verluste an Iridium konnte nicht aufgeklärt werden.
    Notes: Summary This report records an acceptable recovery by fire assay of both microgram and milligram quantities of iridium by copper as a collector. This collecting medium has been found to be superior to lead in that it can be applied successfully in the presence of the commonly associated transitional metals and superior to copper-nickel-iron in that comparable collections of iridium can be made at lower temperatures. The effect of varying the silicate degree of the flux on the collection of iridium by copper has also been studied; maximum recovery being achieved with acid slags whose silicate degree was 3.0. The origin of small losses of iridium remains unknown.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 152 (1956), S. 427-433 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary O-, m- and p-hydroxy, 3-methoxy, 4-hydroxy, p-methoxy and 3,4-dimethoxy derivatives of cinnamic acid have been investigated for the separation and precipitation of thorium either when present alone or along with trivalent rare-earths. Except for somewhat low results with o-Coumaric acid at low concentration of thorium, all of these acids are satisfactory. However, from the point of speed and expediency, p-hydroxy cinnamic acid (p-coumaric acid) gives a granular precipitate and is to be recommended. Methoxy derivatives of cinnamic acid readily reduce CeIV to CeIII state and therefore offer an advantage when precipitation of thorium is required to be carried out in presence of quadrivalent cerium.
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