Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-07-07
1980-05-27
Adee, John
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
55 67, B01D 1508
Patent
active
042049520
ABSTRACT:
An apparatus and method for increasing the throughput of a chromatographic system by passing several samples in seriatim through tandemly connected first and second chromatographic columns. The eluant from the first column is sampled, or fractionated, and fractions of each of the samples are passed through the second column for further separation. A switching of the sampling valve, disposed between the first and second columns, effects such fractioning. The pumping rate for the second column may be different from that of the first column and allows that two or more sample fractions can occupy the second column concurrently.
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patent: 3918906 (1975-11-01), Small et al.
patent: 4001112 (1977-01-01), Barker
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"Comparisons of Normal Elutions, Coupled Columns, and Solvent Flow or Temperature Programming in Liquid Chromatography" by Snyder in Journal of Chromatography Science, vol. 8, p. 692, 12/1970.
Adee John
Technicon Instruments Corporation
Tedesco S. P.
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