Analyzing system

Details Analyzing system Analyzing system

1998-05-19

2000-02-29

Westin, Edward P.

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

250574, G01N 1506, G01D 1800

Patent

active

060294957

ABSTRACT:
In an inventive analyzing system (e.g. liquid chromatograph), an analyzing schedule includes data on whether or not to carry out a self-check for each sample, and data on what process to follow the self-check according to the check result, in addition to data on the analyzing order and analyzing condition of a series of analyses on a plurality of samples. In carrying out the analysis according to the schedule, a self-check is carried out after an analysis of a sample for which the self-check is scheduled. In the self-check, a data collecting unit 17 collects data on the degree of degradation of expendable parts and on the wavelength error of a spectrophotometric detector 14, etc., and a checking unit 18 detects abnormality by comparing the data to preset tolerable values. For example, in the case where the process specified to follow the detection of abnormality is "stop analysis on detecting abnormality", a control unit 15 stops each part of the system so that the rest of the analyses are deferred.

REFERENCES:
patent: 5022980 (1991-06-01), Tanaka et al.
patent: 5691920 (1997-11-01), Levine et al.

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