Gas Chromatographic Retention Characteristics of Different Polysiloxane Oligomers
作者:
FrankJ. Van Lenten,
JamesE. Conaway,
L.B. Rogers,
期刊:
Separation Science
(Taylor Available online 1977)
卷期:
Volume 12,
issue 1
页码: 1-28
ISSN:0037-2366
年代: 1977
DOI:10.1080/00372367708058062
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The effects on the Kovats and McReynolds indices for a modified set of Rohrschneider solutes have been examined using two different batches of a commercial polysiloxane stationary phase, Dow-Corning DC-710, and five pure oligomers isolated from the mixture. The significant differences that were found between batches appear to be due primarily to changes in the percentage of one oligomer, the cyclic pentamer. This finding emphasizes the desirability of using a pure stationary phase as well as carefully specifying the column temperature in order to improve intra and interlaboratory comparisons of retention indices.
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