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|Type:||Artigo de periódico|
|Title:||Ion-moderated Partition Chromatographic Determination Of Ca14co3 And Ba14co3 Self-radiolysis Products|
|Abstract:||Ion-moderated partition chromatography, using strongly acidic cation-exchange resins, was used to separate five carboxylic acids (formic, oxalic, glyoxylic, glycolic and acetic) and seven one-and two-carbon non-ionic compounds (methanol, ethanol, ethylene glycol, formadehyde, glyoxal, acetaldehyde and methyl formate). The carboxylic acids could not be separated from their corresponding aldehydes. Quantification of the compounds was achieved by using a combined analysis: in the first run, the mixtures were separated using only the cation-exchange column; before the second run, a short anion-exchange column was inserted between the cation- exchange column and the detector to remove the acids, collecting only the non-ionic compounds. This method was used to identify and quantify the organic products formed in the self-radiolysis of solid Ca14CO3 and Ba14CO3. All five acids, formaldehyde and methanol were found. © 1987.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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