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  • 1
    Electronic Resource
    Electronic Resource
    Amidine for extraction and spectrophotometric determination of niobium(V) in the presence of thiocyanate (1986)
    s.l. : American Chemical Society
    Analytical chemistry 58 (1986), S. 192-194 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00292a046
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  • 2
    Electronic Resource
    Electronic Resource
    Extraction and spectrophotometric determination of gold(III) by use of amides and amidines (1986)
    s.l. : American Chemical Society
    Analytical chemistry 58 (1986), S. 1547-1551 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00298a062
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  • 3
    Electronic Resource
    Electronic Resource
    Improved methodology for detecting bromodeoxyuridine in cultured cells and tissue sections by immunocytochemistry (1994)
    Springer
    Histochemistry and cell biology 102 (1994), S. 383-387 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Detection of DNA synthesizing cells may often be achieved by immunocytochemical detection of bromodeoxyuridine (BrdU), which is rapid and appears to give similar results to those found using tritiated thymidine. However, the methodology for detection of BrdU involves a denaturation or digestion step to allow access of the antibody to BrdU incorporated into single- rather than double-stranded DNA. We wished to determine if microwave treatment could be used to enhance the detection of BrdU without the need for any other digestion/denaturation steps. An important consideration was to investigate whether such treatment produces a similar quantitative result, since BrdU detection is usually assessed on the basis of cell number rather than topographical distribution. We have found that microwave treatment can allow considerably lower antibody concentrations and eliminates the need for any other denaturation step. It also reduces the non-specific background staining found when using monoclonal antibodies on mouse tissue. We have performed cell counts and found that the number of BrdU positive cells remains constant for a range of different immunocytochemical parameters. We also report conditions where immunopositivity is adversely affected by changes in technique and describe the optimised conditions for obtaining reproducible results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00268909
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  • 4
    Electronic Resource
    Electronic Resource
    Extraction and atomic-absorption spectrophotometric determination of gold in low-grade ores with amidine (1986)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 323 (1986), S. 494-495 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00470771
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  • 5
    Electronic Resource
    Electronic Resource
    Morphology of solution crystallized trans-1,4-polyisoprene (1987)
    Springer
    Colloid & polymer science 265 (1987), S. 592-596 
    Details
    ISSN: 1435-1536
    Keywords: Morphology ; crystallization ; singlecrystal ; trans-1 ; 4-polyisoprene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The film formation method has been successfully used to grow single crystals and other complex morphological features of low melting form (LMF) and high melting form (HMF) of trans-1,4-polyisoprene (TPIP). Below 40 °C dilute amyl acetate solution gave hexagonal shaped LMF crystals. Thick and elongated hexagonal shaped morphology was shown by HMF crystals at temperatures above 40 °C. Straight faces and sharp corners of the single crystals, and also of complex crystals, acquired round shapes when highly polydispersed TPIP was used for crystallization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01412774
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  • 6
    Electronic Resource
    Electronic Resource
    Caprolactam waste liquor degradation by various yeasts (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 524-526 
    Details
    ISSN: 1573-0972
    Keywords: Bioremediation ; carpolactam ; effluent ; waste liquor ; yeasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Waste liquor from caprolactam manufacture contains many mono- and di-carboxylic acids. Of four yeasts tested, Yarrowia lipolytica DS-1 was the best at decreasing Chemical Oxygen Demand values, by up to 60% with 50 and 100 g waste liquor/after 48 h. Caproic, butyric and valeric acids were utilized most easily. Adipic acid was not decreased below 13% (w/v).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00367658
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  • 7
    Electronic Resource
    Electronic Resource
    Some aspects of the magnetic susceptibility of ferroelectric magnesium hydrogen phosphate crystals (1989)
    Springer
    Journal of materials science 8 (1989), S. 1391-1392 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: 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/BF00720197
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  • 8
    Electronic Resource
    Electronic Resource
    Synthesis and study of the chelating properties of 3-carboxy-4-hydroxyacetophenone-formaldehyde resins (1988)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 160 (1988), S. 175-186 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: 3-Carboxy-4-hydroxyacetophenon (CHAP) wurde in verschiedenen Mengenverhältnissen mit Formaldehyd unter Verwendung von Alkali als Katalysator polykondensiert. Die erhaltenen Polykondensate (CHAP-F) wurden durch Elementaranalyse, IR-Spektroskopie, Bestimmung des Zahlenmittels der Molmasse (M̄n), Thermogravimetrie und Bestimmung der Grenzviskosität charakterisiert. Es wurden polymere Metallchelate mit Cu2+ -, Fe3+ -, Co2+ -, Ni2+ - und UO2+2 -Ionen hergestellt und charakterisiert. Mit Hilfe der Batch-Austauschmethode wurden Ionenaustauschereigenschaften eines CHAP-F Harzes gegen Fe3+ - Cu2+ - und Ni2+ -Ionen bestimmt.
    Notes: 3-Carboxy-4-hydroxyacetophenone (CHAP) was polycondensed with various proportions of formaldehyde using alcoholic alkali as catalyst. The resin samples, designated as CHAP-F, have been characterized by elemental analyses and IR spectroscopy, by estimation of their number average molecular weights (M̄n), by measurement of intrinsic viscosity, and by TGA. Polymeric metal chelates of one CHAP-F sample with Cu2+, Fe3+, Co2+, Ni2+, and UO22+ ions have been prepared and characterized.Ion-exchanging properties of one CHAP-F resin sample for Fe3+, Cu2+, and Ni2+ metal ions are studied by the application of the batch-equilibration method.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1988.051600114
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  • 9
    Electronic Resource
    Electronic Resource
    Polyethers. I. Polyethers from 2,4-dichloroquinolines and alkylene diols (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 36 (1988), S. 561-566 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Polyethers are prepared by condensing, respectively, 2,4-dichloroquinoline and its 6-methyl and 6-methoxy derivatives separately with ethylene, propylene, butylene, diethylene and triethylene glycols. These polyethers are characterized and the electrical conductivity of polyethers is measured at various temperatures up to 150°C.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1988.070360309
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  • 10
    Electronic Resource
    Electronic Resource
    Extraction-spectrophotometric determination of uranium(VI) with PAR and N-octylacetamide (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 152 (1991), S. 243-249 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A new and simple method for selective spectrophotometric determination of uranium(VI) with 4-(2-pyridylazo)resorcinol (PAR) and N-octylacetamide into benzene over pH 7.0–9.0 is described. The molar absorptivity of the complex with 9 different amides is in the range of (0.40–3.2)·104 1·mol−1·cm−1 at the absorption maximum. Out of these, the most sensitive compound N-octylacetamide (OAA) was chosen for detailed studies in the present investigation. The detection limit of the method is 0.008 μg U·ml−1. The system obeys Beer's law in the range of 0–5 μg U·ml−1. The method is free from interferences of most of the common metal ions except vanadium(V) and copper(II), which are masked by proper masking agents. The composition of the complex is determined by curve-fitting method. The method has been applied for the recovery of the metal from rock samples and synthetic mixtures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02042158
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