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  • 1
    Electronic Resource
    Electronic Resource
    KMnO4-OP Chemiluminescence system for FIA determination of hydrogen peroxide (1997)
    Springer
    Microchimica acta 126 (1997), S. 73-76 
    Details
    ISSN: 1436-5073
    Keywords: chemiluminescence ; flow-injection ; hydrogen peroxide ; octylphenyl polyglycol ether (OP)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A fast and simple KMnO4-OP chemiluminescence system for flow-injection analysis of hydrogen peroxide is described. When a mixture of sample and OP is injected into acidic KMnO4, solution in a flow-cell, strong chemiluminescence occurs. The response is linear to the concentration of hydrogen peroxide in the range of 1.0 × 10−8 to 6.0 × 10−5 mol/l with 0.1 mol/l permanganate, and the upper limit of linear response could be extended to 6 × 10−3 mol/l by increasing the permanganate concentration. The relative standard deviation of the method is between 1.6 and 2.3%. The detection limit is 6.0 × 10−9 mol/l. This method is suitable for automatic and continuous analysis and has been successfully tested for determination of hydrogen peroxide in rain water. The chemiluminescence intensity was found to be remarkably enhanced in the presence of the OP micellar system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01242664
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  • 2
    Electronic Resource
    Electronic Resource
    Changes of peroxidase, esterase isozyme activities and some cell inclusions in regenerated vascular tissues after girdling inBroussonetia papyrifera (L.) Vent (1995)
    Springer
    Trees 9 (1995), S. 165-170 
    Details
    ISSN: 1432-2285
    Keywords: Broussonetia papyrifera ; Girdling ; Peroxidase isozyme ; Esterase isozyme ; Cell inclusions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The isozyme zymogram of peroxidase and esterase, and some cell inclusion contents were changed with the differentiation of regenerated vascular stem tissues after girdling inBroussnetia papyrifera (L.). Vent. Presence or disappearance of some peroxidase and esterase isozyme bands was related to wounding. Some isoperoxidase bands disappeared at the time of vascular tissue formation, but some esterase isozyme bands appeared in phloem or cambial regions as sieve-like elements or mature xylem were formed. The inclusion grains progressively disappeared with the formation of callus and initiation of vascular meristems. The cell inclusions reappeared during the formation of regenrated vascular tissues. Histochemical study indicated that the inclusion grains could be a complex compound of a protein mass encircling polysaccharide in the center with a proteinous nucleus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02418206
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