Linked Life Data

19431322

Source:http://linkedlifedata.com/resource/pubmed/id/19431322

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-7-29
pubmed:abstractText
The preparation and properties of a colloidal state of pure chlorophyll a in aqueous dioxane are described. The red absorption maximum is at 685+/- 1 mmu, depending on buffer concentration. The typical 672 mmu colloid (obtained by diluting an acetone solution with water) can be converted directly to the 685 mmu colloid by the addition of 1 M dioxane. The 672 --> 685 mmu conversion is irreversible and is second order with respect to both 672 colloid and dioxane. It is shown that the formation of the 685 mmu colloid of chlorophyll a requires the Mg atom; no dioxane species is obtained with pheophytin or ethyl pheophorbide. Furthermore, of the transition metal salts of chlorophyll, Cu, Co, Ni, and Zn, only the Zn salt interacts with dioxane.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Mar
pubmed:issn
0006-3495
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
99-113
pubmed:dateRevised
2009-11-18
pubmed:year
1963
pubmed:articleTitle
Studies of Colloidal Chlorophyll in Aqueous Dioxane.
pubmed:publicationType
Journal Article