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  • Inorganic Chemistry  (16)
  • 11C
  • Best. von Carcinoembryonalem Antigen in Carcinomen
  • LDL cholesterol
  • 1
    Electronic Resource
    Electronic Resource
    Effect of polyenyl phosphatidyl choline on clofibrate-induced increase in LDL cholesterol (1979)
    Springer
    European journal of clinical pharmacology 15 (1979), S. 15-19 
    Details
    ISSN: 1432-1041
    Keywords: clofibrate ; polyenyl phosphatidyl choline ; hyperlipoproteinemia ; LDL cholesterol ; coronary heart disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary In a double-blind, randomised, cross-over trial clofibrate and a combination of polyenyl phosphatidyl choline (PPC) plus clofibrate were tested in 67 patients with hyperlipoproteinemia. Each treatment lasted for 4 weeks and was separated by a 4 week placebo period. The daily doses were clofibrate 1.2 g and PPC 1.8 g + clofibrate 1.2 g, respectively. The results revealed that polypenyl phosphatidyl choline prevented the elevation of LDL-cholesterol induced by clofibrate treatment, and that the lipid-lowering potency of the combination did not differ significantly from that of clofibrate. Since elevation of LDL-cholesterol is considered to increase the risk of coronary heart disease, the combination appears to offer a therapeutic advantage. Despite the significance of this clinical observation, a final decision may only be obtained from a prospective, long term investigation in patients with coronary heart disease and hyperlipoproteinemia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00563553
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  • 2
    Electronic Resource
    Electronic Resource
    Plant uptake of bicarbonate as measured with the11C isotope (1979)
    Springer
    Plant and soil 51 (1979), S. 431-435 
    Details
    ISSN: 1573-5036
    Keywords: Bicarbonate ; Bush beans ; 11C ; Cation-anion ; CO2 fixation ; Galenia ; Tracer ; Uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary 11C which is cyclotron produced by14N(P, α)11C(half-life 20.1M) was use as a tracer of bicarbonate to determine its movements from a nutrient solution through roots to stems and leaves of bush bean plants (Phaseolus vulgaris L. var. Improved Tendergreen). The short time involved and the high solution pH minimized the need for use of the Hederson Hasselbach equation for activity correction. Quantities of11C did move into roots, stems and leaves with a sharp decreasing gradient (root/stem=14.5, stems/leaves=11.7) More11C moved into plants with KHCO3 than with NaHCO3. The (NH4)2SO4 enhanced11C uptake and KNO3 than with competition indicated possibility of some uptake of HCO 3 − . In an experiment withGalenia pubescens (Eckl. and Zeyh.) Druce, the11C was more readily moved to stems and leaves than in bush bean indicating substantial uptake of HCO 3 − .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02197790
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  • 3
    Electronic Resource
    Electronic Resource
    Tumour growth and differentiation in relation to the content of carcinoembryonic antigen in gastrointestinal neoplasia (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 290 (1978), S. 137-138 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Carcinoembryonalem Antigen in Carcinomen ; Radioimmunoassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00482298
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  • 4
    Electronic Resource
    Electronic Resource
    Über die Adsorption von Gasen an Bleichloridkugeln (1937)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 232 (1937), S. 133-154 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Mit der Meßvorrichtung einer Adsorptionsapparatur, die sich vollständig in einem Thermostaten befindet und vollkommen von der Atmosphäre abgeschlossen wird, werden p v/p-Kurven aufgenommen und mit ihrer Hilfe die Versuchsführung so ausgebaut, daß die adsorbierten Gasmengen bei jeder Versuchstemperatur ohne Verwendung eines Gasgesetzes bestimmt werden können.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19372320204
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  • 5
    Electronic Resource
    Electronic Resource
    Ein alternativer Weg zur Darstellung von Bi2Sr2CaCu2Ox, YBa2Cu3O7-δ, und YBa2Cu3-xMxO7-δ (M = Ni, Ag und x ≤ 33 Mol%)Professor Rudolf Hoppe zum 70. Geburtstage gewidmet (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 616 (1992), S. 186-190 
    Details
    ISSN: 0044-2313
    Keywords: Preparation of quaternary copper oxides ; high Tc superconductors ; characterization by X-ray powder methods ; AC- and DC-susceptibility ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: An Alternative Method for Preparation of Bi2Sr2CaCu3Ox, YBa2Cu3O7-δ, and YBa2Cu3-xMxO7-δ (M = Ni, Ag and x ≤ 33 Mol%)Oxidation of quenched melts of metals in a well defined argon/oxygen atmosphere has been found as an alternative method to prepare hight purity samples of Bi2Sr2CaCu2Ox without Pb-stabilization. A special equipment for the oxidation of powder samples will be described. By our new method it is also possible to prepare YBa2Cu3O7-δ and derivatives of this compound, where Cu is substituted by high amounts of Ni or Ag.
    Notes: Es wird eine alternative Präparationsmethode beschrieben, die es ermöglicht, durch Oxidation abgeschreckter Metallschmelzen in einer Sauerstoff-Argon-Strömungsapparatur sehr saubere, nicht Pb-stabilisierte Bi2Sr2CaCu2Ox-Präparate herzustellen. Dieser Weg ist auch für die Darstellung von YBa2Cu3O7-δ und Substitutionsderivaten dieser Verbindung mit hohen Konzentrationen an Ni oder Ag geeignet.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926161030
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  • 6
    Electronic Resource
    Electronic Resource
    Röntgenuntersuchung des Systems KCl—TlCl (1955)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 279 (1955), S. 138-140 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Wie nach der verschiedenen Kristallgitterstuktur von KCl und TlCl zu erwarten ist, bilden diese beiden Salze  -  entgegen früher veröffentlichten Angeben  -  keine lückenlose Reihe von Mischkristallen. Jedoch vermag jedes der beiden Salze das andere zu einem geringen Betrage von einigen Molprozent in fester Lösung aufzunehmen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19552790303
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  • 7
    Electronic Resource
    Electronic Resource
    Über Silikone. LXV. Trennung von (azeotropen) Gemischen aus Silicium-tetrachlorid und Trimethylchlorsilan durch Fluorieren in wäßriger Lösung (1963)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 325 (1963), S. 149-155 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Aceotropic mixtures of SiCl4 and (CH3)3SiCl can be separated by reaction with aqueous HF. (CH3)3SiF is escaping from the reaction mixture in the pure state, whereas HCl and SiF4 (resp. H2SiF6) are remaining in the aqueous solution. Instead of HF, soluble fluorides as NII4F and NH4BF4 can be used, too; the yields are, however, smaller.
    Notes: Gemische von Siliciumtetrachlorid und Trimethylchlorsilan können durch Umsetzen mit wäßriger Flußsäure getrennt werden. Während dabei gebildetes Trimethylfluorsilan in reiner Form entweicht, werden Chlorwasserstoff und Siliciumtetrafluorid (als H2SiF6) von der wäßrigen Lösung festgehalten. Außer HF eignen sich zu dieser Trennung auch andere, in Wasser gelöste Fluoride, wie NH4F oder NH4BF4. Mit diesen sind aber die Ausbeuten weniger hoch.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19633250307
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  • 8
    Electronic Resource
    Electronic Resource
    Über Fluorchemie. XVI. Wäßrige Lösungen von Antimontrifluorid und von Fluorwasserstoff als Fluorierungsmittel in der Silicium- und in der Kohlenstoffchemie (1964)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 330 (1964), S. 195-209 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Aqueous solutions of SbF3 exhibit strong fluorinating properties even against easily hydrolyzable methyl chlorosilanes and -silanoles. The fluorination probably proceeds through the preceding hydrolysis of Si—Cl bonds yielding silanole groups. The influence o BF3 · 2 H2O on the fluorination by means of aqueous SbF3 has been studied.C—Cl bonds do not react with SbF3 solutions, in aqueous hydrogen fluoride containing 20-40 weight per cent HF, however, the formation of C—F groups occurs at room temperature. The Si—O—Si bond of methyl chlorodisiloxanes is cleaved by diluted HF, but not by aqueous SbF3.
    Notes: Einfache stark hydrolyseempfindliche Methylchlorsilane und -silanole werden über raschenderweise von wäßrigen Antimontrifluoridlösungen fast ebenso gut fluoriert wie von der wasserfreien Verbindung. Methylchlordisiloxane werden zwar von verdünnter Flußsäure, dagegen nicht von wäßriger Antimontrifluoridlösung gespalten. Der Fluorierung der Si—Cl-Bindung geht offenbar die Hydrolyse zum Silanol voraus. Der Einfluß von Bortrifluorid-dihydrat auf die Fluorierung in wäßriger Antimontrifluoridlösung wird untersucht. Im Gegensatz zur Si—Cl- wird die C—Cl-Bindung von wäßriger Antimontrifluoridlösung nicht, von 20- bis 40proz. Flußsäure bei Raumtemperatur merklich fluoriert.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19643300312
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  • 9
    Electronic Resource
    Electronic Resource
    Über Fluorchemie. XVIII. Versuche, Hydroxofluoroantimonsäure in wäßrigen Lösungen von Antimontrifluorid nachzuweisen (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 349 (1967), S. 131-138 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Barium salts react with SbF3, solutions to give the slightly soluble Ba[SbF5]; in the case of Ba carbonate and hydroxide, also antimony oxide and oxide fluoride, respectively, are precipitated.Nickel carbonate gives with SbF3 solutions an easily soluble tetrafluoroantimonate(III) Ni[SbF4]2 · 6 H2O, crystallizing as emerald-green prisms of hexagonal habitus. With CaCl2, only the precipitation of antimony oxide-containing CaF2, was observed.Salts of the acid H[SbF3OH] could not be obtained in this manner.
    Notes: Bariumsalze bilden in SbF3-Lösungen schwerlösliches Ba[SbF5]; mit Bariumcarbonat und -hydroxid fallen daneben Antimonoxid bzw. -oxidfluorid aus.Nickelcarbonat ergibt ein leicht lösliches, in smaragdgrünen, sechsseitigen Säulen kristallisierendes Fluoroantimonat Ni[SbF4]2 · 6 H2O; als Nebenprodukt wird oftmals schwer lösliches Nickelfluorid gebildet. Mit CaCl2 fällt ausschließlich antimonoxidhaltiges CaF2, aus. Salze der von Schiemann(2) vermuteten Säure H[SbF3OH] konnten nicht gefunden werden, was aber ihr Vorkommen nicht ausschließt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673490304
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  • 10
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der Infrarotspektren einiger analoger Methylbleisulfinate, -sulfonate und -sulfate (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 355 (1967), S. 230-237 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The IR spectra of several methyllead sulfinates, sulfonates and sulfates and of lead methanesulfonate and lead methanesulfinate have been investigated. Assignments are given. The spectra supply evidence for the ionic constitution of the methyllead compounds.
    Notes: Die IR-Spektren von verschiedenen Methylbleisulfinaten, -sulfonaten und -sulfaten sowie von Bleimethansulfonat und Bleimethansulfinat wurden aufgenommen und die wichtigsten Banden zugeordnet. In allen Fällen sind den Spektren Hinweise für den salzartigen Charakter der Verbindungen zu entnehmen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673550503
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