Measuring and testing – Gas analysis – Gas chromatography
Patent
1988-02-17
1989-07-11
Levy, Stewart J.
Measuring and testing
Gas analysis
Gas chromatography
73 611C, G01N 3032
Patent
active
048459852
ABSTRACT:
In a system for analyzing a chemical sample by chromatographic separation of said sample into components a method and apparatus are provided for maximizing detector resolution and minimizing duration by maintaining the linear velocity of the mobile phase at a desired level by affecting the viscosity and density characteristics of the mobile phase as it passes through a restrictor by programming the restrictor temperature.
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Guthrie, E. J., et al.,-Journal of Chromatographic Science, vol. 24-pp. 236-241-Jun., 1986-USA.
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Smith, Richard D., et al.-Analytical Chemistry, vol. 58, No. 9, pp. 2057-2064-Aug., 1986-USA.
White, C. M., et al.-Journal of High Resolution Chromatography & Chromatography Communications, vol. 9-pp. 4-17, Jan., 1986-USA.
Hewlett--Packard Company
Levy Stewart J.
Roskos Joseph W.
Schuette Richard F.
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