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Gas chromatographic analysis of volatile components in the presence of excess of non-volatiles

✍ Scribed by Edward W. Cieplinski; Leslie S. Ettre

Publisher
Elsevier Science
Year
1960
Tongue
English
Weight
294 KB
Volume
4
Category
Article
ISSN
1873-3778

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✦ Synopsis

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  1. The specific surface area of the support material:does no: influence particularly the separation effect df the column if the surface'area is over a certain limit, and in this case the influence of the polarity is considerably~ higher. This limit seems tosbe according to our data, at about I ms/g, which is contradictory to other data! where a minimum necessary surface area of about 3 ni2/g is given. c ' 5. The use of .Teflon as support material .is only preferable, where the extremely high 'polarity of the sample component(s) makes ,it necessary. * t..

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## Abstract In crust and crumb of wheaten bread made from first quality wheat flour by various dough preparing methods volatile nitrogen compounds were determined for the first time by means of gas chromatography. The following 34 compounds were identified: methylamine, ethylamine, propylamine, but