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  • 1
    Electronic Resource
    Electronic Resource
    Coagulation of Blood and Milk by Electrolytes and the Similarity between the Clotting of Blood and the Formation of Jellies (1929)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 33 (1929), S. 459-466 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150297a014
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  • 2
    Electronic Resource
    Electronic Resource
    Selection of a Strain of Plasmodium berghei highly resistant to Chloroquine (‘Resochin’) (1957)
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 975-975 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experimental selection of the strain was made in albino mice, the serial passages being exposed to progressively increasing doses of 'Resochin' solution administered intraperitoneally. The experiment involved 33 mouse passages during a period of about seven months. When the dose of drug ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/179975a0
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  • 3
    Electronic Resource
    Electronic Resource
    Studies on mobilization of chromium with reference to its plant availability – Role of organic acids (1999)
    Springer
    BioMetals 12 (1999), S. 201-207 
    Details
    ISSN: 1572-8773
    Keywords: organic acids ; complexation ; CrIII ; solubilization ; maize plant ; chromium enrichment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Metal-organic acid interactions with special reference to their plant availability have been studied. The role of organic acids in the mobilization of Cr by converting it into labile organically bound form, enhancing its availability, is highlighted. Pot experiments are conducted to investigate the effect of various organic acids on the uptake and translocation of root absorbed trivalent and hexavalent chromium by maize (z. mays) plants grown in sand and soil culture. Statistically significant increases in chromium accumulation from CrIII-treated plants in the presence of increasing concentrations of organic acid suggest the existence of CrIII – organic acid interactions in the soil plant system. In order to support the above mentioned hypothesis of formation of organically bound CrIII in the presence of various organic acids (carboxylic and amino acids), separate experiments have been performed to synthesize and estimate its respective organically bound forms. Amendments with organic acids, however, do not appear to markedly affect chromium accumulation from CrVI treatment. The results are discussed on the basis of the potential of organic acids to form complexes with CrIII.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009262609373
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  • 4
    Electronic Resource
    Electronic Resource
    A note on the influence of ultrasonic waves on the conductivity of colloidal solutions (1957)
    Springer
    Colloid & polymer science 151 (1957), S. 72-73 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01502261
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  • 5
    Electronic Resource
    Electronic Resource
    Chromium mobilization and plant availability — the impact of organic complexing ligands (1999)
    Springer
    Plant and soil 212 (1999), S. 201-206 
    Details
    ISSN: 1573-5036
    Keywords: complexation ; CrIII ; organic acids ; root exudates ; solubilization ; tomato
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Pot experiments were conducted to investigate the effect of various organic acids (carboxylic and amino acids) on the uptake and translocation of root-absorbed trivalent chromium by tomato ( Lycopersicum esculentum) plants grown in sand and soil culture. Statistically significant increases in chromium accumulation from Cr(III) treated plants in the presence of increasing concentrations of organic acid suggest the existence of Cr(III) — organic acid interactions in the soil-plant system. However, the amino acids have been less effective in the mobilization of chromium compared to carboxylic acids. The results are discussed on the basis of the potential of organic acids to form complexes with Cr(III).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004691217480
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of selenite and selenate on plant uptake and translocation of mercury by tomato (Lycopersicum esculentum) (1996)
    Springer
    Plant and soil 183 (1996), S. 233-238 
    Details
    ISSN: 1573-5036
    Keywords: mercury ; plant-uptake ; selenite ; selenate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Pot culture experiments containing sand and soil, at two levels of mercury (2 and 5 μg mL-1) added through irrigation with increasing supplementation of selenium (selenite and selenate) led to a decrease in the uptake of mercury by tomato (Lycopersicum esculentum) plant. Both the forms of selenium (selenite and selenate) were found to be equally effective in reducing the mercury accumulation by plants. The observed reduction pattern of mercury accumulation in plant tissues has been discussed on the basis of the formation of insoluble HgSe complex in soil-root environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011438
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  • 7
    Electronic Resource
    Electronic Resource
    Untersuchungen über kolloidale SulfosalicylsÄure (1955)
    Springer
    Colloid & polymer science 142 (1955), S. 24-27 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary 1. Conductometric studies of complex formation between iron (III) and colloidal mercuri-sulphosalicylic acid and sulphosalicylic acid have been made in an acidic medium. 2. Both with mercuri-sulphosalicylic and sulphosalicylic acids, iron (III) reacts to form a violet complex at a ratio of 1∶1 of the reactants.
    Notes: Zusammenfassung 1. Es wurden LeitfÄhigkeitsmessungen zur Untersuchung der Komplexbildung zwischen dreiwertigem Eisen und kolloider Quecksilber-SulfosalicylsÄure und SulfosalicylsÄure in saurem Medium durchgeführt. 2. Sowohl Quecksilber-SulfosalicylsÄure wie auch SulfosalicylsÄure bilden mit dreiwertigem Eisen einen violetten Komplex mit dem KomponentenverhÄltnis 1∶1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01511458
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation of zirconium jellies with a pyridine base (1958)
    Springer
    Colloid & polymer science 158 (1958), S. 130-131 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01840015
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  • 9
    Electronic Resource
    Electronic Resource
    The influence of ultrasonic waves on the viscosity and stability of vanadium pentoxide sol (1959)
    Springer
    Colloid & polymer science 167 (1959), S. 39-41 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Das Vanadium-Pentoxyd-Sol zeigt, wenn Ultraschall ausgesetzt, einen steigenden Wert an Wasserstoffionen-Konzentration und LeitfÄhigkeit. Es wird festgestellt, da\ diese VerÄnderung entweder einer übersÄttigung an Meta-VanadinsÄure in Gegenwart der Ultraschallwellen oder der Erzeugung von Peroxyd-VanadinsÄure unter Einflu\ von Wasserstoffsuperoxyd zuzuschreiben ist. Wasserstoffsuperoxyd wird bekanntlich unter diesen Bedingungen in Spuren gebildet. über die Änderung der ViskositÄt des fraglichen Sols in Gegenwart von Elektrolyten unter gleichzeitigem Einflu\ von Ultraschall wird ebenfalls berichtet.
    Notes: Summary The vanadium pentoxide sol when exposed to ultrasonic waves shows an increased value of hydrogen ion concentration and conductivity. It is postulated that this change is due to either supersaturation of metavanadic acid in presence of the high frequency waves or to the production of peroxyvanadic acid under the influence of hydrogen peroxide which is known to be formed in traces under these conditions. The change in viscosity of vanadium pentoxide sol in presence of electrolytes under the influence of ultrasonic waves has also been recorded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01810120
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  • 10
    Electronic Resource
    Electronic Resource
    The influence of ultrasonic waves on the hydrogen ion concentration and the stability of colloidal solutions (1958)
    Springer
    Colloid & polymer science 158 (1958), S. 33-35 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Es wurde der Einfluß von Ultraschall auf die Wasserstoffionenkonzentration mehrerer Kolloide untersucht. Sole von Antimonsulfid, Arsensulfid, Zinnhydroxyd, Chromhydroxyd, Vanadiumpentoxyd und Mangandioxyd zeigen eine leichte Verminderung der pH-Werte. Andererseits lassen Sole von Preußisch-Blau, Kupferferrocyanid, Uranferrocyanid, Aluminiumhydroxyd und Cerhydroxyd einen Anstieg erkennen, während Ferriarsenat-, Ferriphosphat- und Ferrihydroxyd-Sole keinerlei Veränderung der pH-Werte zeigen. Außerdem koagulieren Sole von Antimonsulfid, Arsensulfid, Mangandioxyd und Uranferrocyanid bei längerer Beschallung, und Cerhydroxyd bildet ein Gel.
    Notes: Summary The influence of ultrasonic waves on the hydrogen ion concentration of several colloids have been studied It has been found that the sols of antimony sulphide, arsenious sulphide, stannic hydroxide, chromium hydroxide, vanadium pentoxide and manganese dioxide show slight decrease in pH values. On the other hand the sols of prussian blue, copper ferrocyanide, uranium ferrocyanide, aluminium hydroxide and cerium hydroxide show an increase and that of ferric arsenate, ferric phosphate and ferric hydroxide do not show any change in pH values. Further the sols of antimony sulphide, arsenic sulphide, manganese dioxide and uranium ferrocyanide coagulate on prolonged exposure and ceric hydroxide sol sets to a gel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01744654
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