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dc.contributor.authorMcFarlane, Alice Margareten
dc.date.accessioned2018-01-31T11:22:58Z
dc.date.available2018-01-31T11:22:58Z
dc.date.issued1950en
dc.identifier.urihttp://hdl.handle.net/1842/26752
dc.description.abstracten
dc.description.abstract(1) A method has been developed for studying the photo-oxidation of plant pigments on thallous bromide; it depends essentially on the accurate measurement of the pressure decreases involved, using a sensitive Bourdon glass-spring gauge.en
dc.description.abstract(2) The results show that, under these conditions, both freshly prepared and copper-stabilised chlorophyll absorb one molecule of oxygen par molecule of pigment. This is also true for the carotenoid fraction. For acid-treated chlorophyll, or phebphytin, this ratio is increased threefold. These oxidations were shown to be partly reversible.en
dc.description.abstract(3) The thallous bromide has been shown to act merely as a photo-sensitiser.en
dc.description.abstract(4) A thermal oxidation of carotenoids and of carotenoid/chlorophyll mixtures was observed in the presence of certain cobalt salts.en
dc.description.abstract(5) It has proved Impossible as yet, with this in vitro system, to simulate any photosynthetic reaction, although the effect of carbon dioxide and water vapour was examined for the majority of the experiments.en
dc.description.abstract(6) A general scheme has been proposed to account for the main features of the photo-oxidation*en
dc.publisherThe University of Edinburghen
dc.relation.isreferencedbyAlready catalogueden
dc.subjectAnnexe Thesis Digitisation Project 2017 Block 15en
dc.titleThe photo-oxidation of chlorophyll and related substances when adsorbed on solid surfacesen
dc.typeThesis or Dissertationen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD Doctor of Philosophyen


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