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Control system and program for liquid chromatograph

A technology of liquid chromatograph and control equipment, applied in the field of control equipment and control program for liquid chromatograph

Active Publication Date: 2013-01-16
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Occasionally, sample introduction processing may be omitted, and gradient processing may start simultaneously with sample injection

Method used

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  • Control system and program for liquid chromatograph
  • Control system and program for liquid chromatograph
  • Control system and program for liquid chromatograph

Examples

Experimental program
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Effect test

no. 1 example

[0079] Will refer to Figure 1 to Figure 6 The control device for the liquid chromatograph according to the first embodiment of the present invention is described. According to the current embodiment, figure 1 It is a schematic configuration diagram of a liquid chromatograph with control equipment.

[0080] This liquid chromatograph includes: a liquid supply part 10; an autosampler 20; a column thermostat 30; a detection unit 40; a system controller 50 for controlling each of these units; A controller 60 that manages analysis operations and the detector analyzes and processes data obtained through the detector 40; an operating unit 71 composed of a keyboard and a mouse connected to the controller 60; a display unit composed of a display; and other units .

[0081] The liquid supply part 10 is mixed through the pump P A Pumped solvent A and pump P B Withdraw solvent B, and then supply the mixed solvent to the column tube. Four solvent containers are connected to each pump P throu...

no. 2 approach

[0102] Will refer to figure 2 with Figure 7 to Figure 14 The control device of the liquid chromatograph according to the second embodiment of the present invention is described.

[0103] The control device of this embodiment has the figure 1 The liquid chromatograph shown with this control device has the same structure. Therefore, the structural description is omitted. In this embodiment, the schedule generating section 63 and the analysis controller 64 cooperate and serve as the analysis controller and the preliminary liquid supply controller in the second aspect of the present invention described above. The data processor 65 corresponds to the analysis result storage unit and the automatic data file naming unit in the second aspect of the present invention described above.

[0104] The standard analysis operations in the single gradient analysis using the liquid chromatograph of the current embodiment (ie, the operations in sample introduction processing, gradient processing,...

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PUM

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Abstract

The present invention aims at reducing the time required for a series of analyses in the sequential performance of gradient analyses under a variety of conditions. To this end, in a control apparatus for controlling the operation of a liquid chromatograph having a gradient analysis function in which a mobile phase composed of a plurality of mixed solvents is used and a chromatograph analysis is performed while the mixture ratio of the solvents is temporally changed, the liquid chromatograph is controlled so as to continuously change the mixture ratio of the solvents from an initial mixture ratio to a final mixture ratio when performing a sample analysis; and as to perform, before the sample analysis, a preparatory liquid supply in which the mixture ratio of the solvents is continuously changed from the initial mixture ratio to the final mixture ratio at a rate higher than that in the sample analysis.

Description

Technical field [0001] The present invention relates to a control device for controlling the operation of a liquid chromatograph and a program used in the control device. Background technique [0002] The liquid chromatograph is composed of multiple units such as autosampler, pump, and column oven. The operation of each unit is controlled by the control signal from the control device. [0003] In recent years, in order to collectively control the analysis unit and process the collected data, in such a liquid chromatograph, a personal computer having a control / output program installed is widely used as a control device. In such a control device, a schedule is generated before starting analysis so that multiple samples can be continuously analyzed, or other types of analysis can be automatically performed (for example, see JP-A 2005-127814). [0004] Figure 15 An example of a schedule for liquid chromatograph analysis is displayed. In this chart, each row corresponds to an analysis....

Claims

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Application Information

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IPC IPC(8): G01N30/62
CPCG01N30/8651G01N30/62G01N30/34B01D15/203G01N30/8693G01N30/8696G01N2030/8804
Inventor 大桥浩志山口忠行寺田英敏
Owner SHIMADZU SEISAKUSHO CO LTD
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