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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Analytica Chimica Acta 283 (1993), S. 230-245 
    ISSN: 0003-2670
    Keywords: Biogenic halogenated methanes ; Gas chromatography ; Halogens ; Heavy metals ; Iodine cycle ; Ion chromatography ; Isotope dilution analysis ; Mass spectrometry ; Nitrate cycle ; Trace detection
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 209 (1932), S. 325-327 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Der beim Eintauchen von metallischem Cadmium in eine sehr verdünnte Lösung von Goldschlorid entstehende Niederschlag ist nicht nur in seiner Zusammensetzung, sondern auch in seiner röntgenographisch verglichenen Struktur identisch mit der intermetallischen, aus der Schmelze entstandenen Verbindung AuCd3.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 173 (1928), S. 27-44 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die bereits früher berichtete Beobachtung, daß die Reduktion von silberhaltigen Reduktionsgemischen ohne Verwendung von Gold-oder Silberkeimen durch Hydrazinhydrat je nach der Menge des dabei anwesenden Natriumcarbonats abgestufte Silbersole zu liefern vermag, wird erweitert.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 181 (1929), S. 379-384 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Abhängigkeit des elektrokinetischen Potentials des Goldes von der Konzentration wird in sehr verdünnten Lösungen von Elektrolyten (10-8-10-5 n.) verfolgt.
    Additional Material: 3 Ill.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 164 (1927), S. 409-419 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Im Gegensatz zu den bekannten Silberhydrosolen mit vielfarbigen Submikronen kann man auch solche mit gleichfarbigen Teilchen herstellen und damit ähnliche Verhältnisse erreichen, wie bei kolloidem Gold.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 148 (1925), S. 382-390 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. An Goldhydrosolen, die durch Reduktion gewonnen waren, sind die Beweglichkeiten der Goldteilchen im elektrischen Potentialgefälle unabhängig von dem Zerteilungsgrad und der Art der Darstellung.
    Additional Material: 1 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 169 (1928), S. 140-150 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die für die Darstellung von gleichteiligen Silberhydrosolen besten Mengenverhältnisse werden zusammengestellt für das Arbeiten mit 0,001% iger Silberoxydlösung.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 136 (1987), S. 37-48 
    ISSN: 1615-6102
    Keywords: Chara ; Fine structure ; Growth ; Heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The toxicity of some heavy metals to the common macrophytic freshwater algaChara vulgaris was studied under laboratory conditions. For experiments, apical tips of algae containing two internodes were cultivated for fourteen days in the presence of various concentrations of cadmium, mercury or lead (as triethyl lead or lead nitrate). Fifty percent growth inhibition occurred with concentrations of 8.5×10−8 M (9.5 ppb) cadmium, 7.5×10−7M (150ppb) mercury, 1.6×10−6 M (330ppb) organic lead or 4× 10−5 M (8000 ppb) inorganic lead. Sublethal concentrations of these metals caused alterations in the fine structure of internodal cells which turned out to be at least partly metal-specific or in the case of lead, the effects depended on whether the lead was ionic or organically bound. Cadmium and inorganic lead induced disorders of cell wall microfibrils which resulted in local wall protuberances. Mercury affected the chloroplasts which mostly showed considerably increased grana stacks. In addition, mercury caused a dilation of the endoplasmic reticulum and of the mitochondrial tubuli. Organic lead damaged the membrane system of chloroplasts; sheet- or tubule-like thylakoids were disarranged and showed whorl-like structures. At higher concentrations of organic lead, tubular invaginations of the plasmalemma (“charasomes”) disappeared. The fine structure of nuclei was not altered by any of the metals.
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  • 9
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Calcium Isotope Separation and Reaction Enthalpy. Calcium Isotope Separation and Determination of Reaction Enthalpy in Ion Exchange Using a Strongly Acidic Cation Exchange ResinIn the system of a strongly acidic cation exchanger/BaCl2 solution the isotope separation between 40Ca2+ and 48Ca2+ is investigated using column experiments. 48Ca2+ is enriched in the solution phase whereas 40Ca2+ is enriched in the resin phase. A strong dependence of the isotope separation effect on the concentration of the BaCl2 solution is found. The isotope separation increases with decreasing concentration. The isotope separation also depends on temperature: the isotope separation effect increases with decreasing temperature. A ΔH-value of  - 5.8 J/mol is determined for the calcium isotope exchange reaction.
    Notes: In säulenchromatographischen Versuchen wird im System stark saurer Kationenaustauscher/BaCl2-Lösung die Isotopenseparation zwischen 40Ca2+ und 48Ca2+ untersucht. 48Ca2+ reichert sich dabei in der Lösung des Systems an. Eine starke Abhängigkeit des Isotopentrenneffekts von der Konzentration des Fremdelektrolyten BaCl2 ist zu beobachten, wobei die Isotopenseparation bei niedrigerer Konzentration zunimmt. Desgleichen erhöht sich der Trenneffekt mit fallender Temperatur. Für die Calciumisotopenaustauschreaktion wird ein ΔH-Wert von  - 5,8 J/mol bestimmt.
    Additional Material: 1 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 290 (1957), S. 191-204 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die binären System des Strontiums mit Palladium, Platin, Rhodium und Iridium wurden mikroskopisch und röntgenographisch auf der Edelmetallseite untersucht. In sämtlichen 4 Systemen treten Lavesphasen vom Cu2Mg-Typ auf, die auf Grund des hier vorliegenden Atomradienverhältnisses von etwa 1,6 nicht zu erwarten waren.Mit Palladium und Platin vermag Strontium außerdem eine A5B-Phase vom Typ Cu5Ca zu bilden.Die Ergebnisse werden diskutiert.
    Additional Material: 12 Ill.
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