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GPC: Use of automatic weighing to determine elution volumes
Author(s) -
Moebus Gerhart A.,
Crowther John A.,
Bartick Edward G.,
Johnson Julian F.
Publication year - 1979
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1979.070231206
Subject(s) - elution , volume (thermodynamics) , chromatography , volumetric flow rate , column chromatography , continuous flow , constant (computer programming) , materials science , chemistry , analytical chemistry (journal) , computer science , mechanics , thermodynamics , physics , programming language
An automatic balance has been designed, constructed, and tested for continuous determination of the weight of the eluent in chromatography. This balance is considerably more precise than the frequently used automatic siphons. As the elution volume for any molecular species is independent of flow rate over a considerable range, the balance can be used with relatively inexpensive pumps, and thus highly precise constant volume pumps are not required.