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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Inorganic chemistry 9 (1970), S. 2465-2469 
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 25 (1953), S. 204-204 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 26 (1954), S. 1963-1964 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 28 (1956), S. 1193-1194 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Physics and Chemistry of Solids 12 (1960), S. 119-121 
    ISSN: 0022-3697
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 73 (1969), S. 2956-2960 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Mineralogy and petrology 47 (1993), S. 193-208 
    ISSN: 1438-1168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Zusammenfassung Vivianit von der Catavi Mine, Llallagua, Bolivien zeigt annähernd ideale Zusammensetzung mit Spuren von Mg, Zn und Mn. Der gesamte Gehalt an seltenen EvolElementen ist 〈 1 ppm. Die Mössbauer Spektroskopie liefert ein Fe3+/(Fe2+ + Fe3+) Verhältnis von ungefähr 0.04.a = 10.030,b = 13.434,c = 4.714 Å, β = 102.73°. Das Infrarot-Pulverspektrum zeigt dem H20 zuzuordnende Banden bei 3490, 3290, 3130 cm−1 (Streckschwingungen), 1618 cm−1 (Deformationsschwingung), 825 cm−1 (Schaukelschwingung) und eine mögliche M-OH2 Torsionsschwingung bei 665 cm−1. PO4 Banden liegen bei 1045-940 cm−1 (Streckschwingung) und 570-450 cm−1 (Deformations-schwingung). Entsprechende Banden der Laser Raman Mikrosonde liegen bei 1051 (mst), 986 (m), 948 (sst) 867 (mschw), 828 (schw), 568, 532, 453 (m), 442 (mschw). Raman Banden bei etwa 342, 303, 270 (schw), 235 (mst), 227 (Schulter, mst), 196 (mst), 187 (Schulter, m), 162 (mschw) und 126 (m) können auf Gitterschwingungen zurückgeführt werden. Differential-thermoanalytische Untersuchungen zeigen einen endothermen Bereich von 115–235°C mit einer Schulter bei 170 und einem Maximum bei 210°C, was auf den Verlust von strukturellem Wasser, das an eine Oxidation des Fe2+ gebunden ist, zurückzuführen ist; zwei auf strukturelle Transformationen zurückzuführende exotherme Maxima liegen bei 605 und 780°C.
    Notes: Summary Vivianite from Catavi Mine, Llallagua, Bolivia, has a near ideal composition with traces of Mg, Zn and Mn. Total rare-earth elements are 〈 1,gmg/g. Mössbauer spectroscopy shows FeIII/(FeII + FeIII) is approximately 0.04.a = 10.030Å,b = 13.434Å,c = 4.714Å,β = 102.73dg. The middle-infrared powder spectrum shows H2O-related bands at 3490, 3290, 3130 cm−1 (stretch), 1618 cm−1 (bend), 825 cm−1 (rock), and at 665 cm−1 a possible M-OH2 twist. P04 bands occur at 1045-940 cm−1 (stretch) and 570-450 cm−1 (bend). Corresponding laser Raman microprobe bands occur at 1051 (ms), 986 (m), 948 (vs), 867 (mw), 828 (w), 568, 532, 453 (m), 442 (mw). Weak Raman bands at about 342, 303, 270 (w), 235 (ms), 227 (sh, ms), 196 (ms), 187 (sh, m), 162 (mw), and 126 (m) may arise from lattice vibrations. Differential thermal responses include a major endotherm from 115–235°C with a shoulder at 170°C and a maximum at 210°C resulting from loss of structural water combined with oxidation of Fe2+, and two small exotherms with maxima at 605 and 780°C related to structural transformations.
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  • 8
    ISSN: 1572-8927
    Keywords: Excess free energy of mixing ; mixed salt solutions ; osmotic coefficients ; KCl ; K2SO4 ; NaCl ; Na2SO4
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Aqueous solutions of sodium chloride, potassium chloride, sodium sulfate, and potassium sulfate can be mixed in six ways to give ternary mixtures. Two of these have already been studied and results are now presented for the remaining four systems: H2O−NaCl−K2SO4, H2O−Na2SO4−K2SO4, H2O−KCl−Na2SO4, and H2O−KCl−K2SO4.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1572-8927
    Keywords: Sodium chloride ; potassium chloride ; sodium dihydrogen orthophosphate ; potassium dihydrogen orthophosphate ; multicomponent electrolyte solutions ; excess energy of mixing ; osmotic coefficients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Five of the six possible aqueous two-salt mixtures from among NaCl, KCl, NaH2PO4,and KH2PO4 have been studied by the isopiestic method at 25°C. The sixth mixture, NaCl−KCl, has been studied previously. The deviations from ideal mixing behavior are described by a series of coefficients which were found by regression analysis. The coefficients were used to calculate the excess Gibbs energies of mixing for equal ionic strength fractions of each salt and the trace activity coefficient of each salt at an ionic strength of 2 mode-kg−1. The cross-square mixing rule is obeyed within experimental uncertainty for the excess Gibbs energies of mixing.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular histology 14 (1982), S. 655-664 
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Peroxidase-labelled lectins specific for various carbohydrate residues were used as histochemical reagents in the investigation of Hurler's syndrome. Peanut lectin was used to detect terminald-galactose, wheatgerm lectin forN-acetyl-d-glucosamine, soybean lectin forN-acetyl-d-galactosamine,Tetragonolobus lotus lectin for α-l-fucose andBandeiraea S. lectin for α-d-galactose. It was found that Kupffer cells in the liver and splenic reticulo-endothelial cells contain acid mucopolysaccharides which bind lectins in paraffin sections after appropriate fixation. The pattern of lectin binding suggests that such cells contain significant amounts ofd-galactose,l-fucose,N-acetyl-d-galactosamine andN-acetyl-d-glucosamine. It is likely that the last named carbohydrate is present as a polymer. Neurones contain a different carbohydrate, rich in galactose and fucose but poor inN-acetyl-d-glucosamine. This compound is resistant to lipid extraction. Hepatocytes, as a rule, do not react with lectins, most likely because of loss of the more soluble mucopolysaccharides during fixation. The results are consistent with the biochemical data of Hurler's syndrome and indicate that lectins can be a useful tool for the investigation of the cytochemistry of storage disorders.
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