Chromatographic instrument with command sequencing

Liquid purification or separation – With means to add treating material – Chromatography

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Details

73 611C, 210 961, 210143, 364499, 364502, 422 70, B01D 1508

Patent

active

049699938

ABSTRACT:
A liquid chromatographic instrument includes specimen vessels in randomly designated locations. An automatic sampler sequentially samples specimens from selected vessels based on instructions from a set of command instruction lines. A detector module measures characteristics of each sampled specimen, and results for each test specimen relative to a standard specimen are computed. A command sequence program includes reading of a user inputed ordered list to effect a sequential selection of each location designation according to the ordered list, generation of a command instruction line corresponding to each sequential selection and containing a location designation and measurement instructions for each selected specimen, counting of the number of command instruction lines generated since a nearest prior calibration command instruction line, and in response to the counting number being equal to the calibration frequency, generation of a next calibration command instruction line containing the location designation and the measurement instructions for the standard specimen.

REFERENCES:
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patent: 4472354 (1984-09-01), Passell et al.
patent: 4579663 (1986-04-01), Poile et al.
patent: 4674323 (1987-06-01), Rulf et al.
patent: 4802981 (1989-02-01), Kenney et al.

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