High temperature polar stationary liquid phase for gas chromatography
AssigneesApplied Science Laboratories, Inc., Silar Laboratories, Inc.
InventorsRichard F. Kruppa, Arthur Edward Coleman
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Abstract
This invention is an improved stationary phase utilized in gas-liquid chromatography, having high thermal stability, producing low noise level in an electrical detecting apparatus, comprising of a silicone polymer with recurring units of the formula: ##STR1##
Claims4
A column for conducting gas-liquid chromatographic separations, said column exhibiting moderately high polarity in the temperature range of 20.degree. to 275.degree. C and filled with a packing containing a liquid phase having recurring units of the following formula:
- ##STR4## Where X is a whole number greater than 2.
A column for conducting gas-liquid chromatographic separations, said column exhibiting moderately high polarity in the temperature range of 20.degree. to 275.degree. C and having its inner wall surface covered with a film of a liquid phase consisting of recurring units of the following formula:
- ##STR5## Where X is a whole number greater than 2.
A column for conducting gas-liquid chromatographic separations, said column exhibiting moderately high polarity in the temperature range of 20.degree. to 275.degree. C and having its inner wall surface covered with a film of packing, said packing containing a liquid phase having recurring units of the following formula:
- ##STR6## Where X is a whole number greater than 2.
In the gas-liquid chromatographic separations of chemical compounds, the method which comprises of passing a mixture of chemical compounds and a carrier gas over an elongated film of a liquid stationary phase which exhibits moderately high polarity and which is maintained in the temperature range of 20.degree. to 275.degree. C and which consists of recurring units of the following formula:
- ##STR7## Where X is a whole number greater than 2.
Dependencies are inferred from the claim text.