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Liquid chromatography device

A liquid chromatography device and liquid delivery technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as complicated operations, reduced operating efficiency, and reduced effective time, and achieve the goals of improving operating efficiency, avoiding adjustments, and reducing burdens Effect

Pending Publication Date: 2021-04-13
HITACHI HIGH TECH SCI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the case of the above-mentioned technology, the user has to judge the process to be omitted or shortened in the preparation process, and the work becomes complicated, and runs counter to automation
[0008] On the other hand, when the fixed preparation process is automatically performed without this judgment, for example, there is a problem that although adjustment is almost unnecessary, the preparation process requires waiting time, the effective time for actual measurement is reduced, and the operation Reduced efficiency

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  • Liquid chromatography device
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Embodiment Construction

[0045] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0046]figure 1 It is a figure which shows the structure of the liquid chromatography apparatus 100 which concerns on embodiment of this invention. The liquid chromatography apparatus 100 includes a data processing device (control unit) 7 for overall control, a mobile phase (a mixed solution of an eluent and a solvent) 1, a pump 2 for transporting the mobile phase 1, an autosampler 3 for injecting a sample, and a separation The column 4 for the components, the column oven 5 for holding the column 4 at a constant temperature, the detector 6 for detecting the separated components, and the display unit 10 .

[0047] The data processing device 7 is constituted by a computer having a control unit (CPU) 9 that performs analysis and analyzes the analysis result, and a storage unit (hard disk or the like) 8, and the storage unit (hard disk, etc.) 8 saves the analysis result or ...

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Abstract

The invention provides a liquid chromatography device. The liquid chromatography device automatically determines whether or not to adjust a device during measurement, and further automatically performs adjustment, thereby reducing the burden of a user, avoiding unnecessary adjustment, and improving the work efficiency. The liquid chromatography device (100) is provided with a control unit (9) that measures the same sample or different samples under predetermined measurement conditions by using a same column (4), and when the current measurement is completed and the next measurement is started, the control unit compares a predetermined comparison condition among the measurement conditions of the current measurement with a comparison condition among the measurement conditions of the next measurement. When the comparison results are within a predetermined threshold value and are consistent, the next measurement is performed without performing the adjustment of the device, and when the comparison results exceed the threshold value and does not match with each other, the adjustment of the device determined according to the threshold value is performed.

Description

technical field [0001] The present invention relates to liquid chromatography devices. Background technique [0002] When a liquid chromatography (HPLC) device is used for measurement, when a sample changes, analysis (measurement) conditions need to be changed, and device preparation and prior stabilization operation (adjustment) need to be performed. This is because, for example, (i) when the composition of the liquid phase sent to the column changes, it takes time to replace the liquid phase of the channel (replacement), (ii) when the measurement conditions change, it is necessary to perform Liquid is sent until the column reaches equilibrium with the new measurement conditions (equilibrium). (iii) When the measurement wavelength changes, the wavelength position and the like are moved in the detector, so it is necessary to wait until the position is reached. Until the state is stable (the main reason for drift). [0003] On the other hand, it is desired to automate the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/8804G01N35/00712G01N30/86
Inventor 福田真人伊藤正人松下美由纪桥本诚
Owner HITACHI HIGH TECH SCI CORP