Spectrum peak end point adjustment method and chromatographic workstation with spectrum peak end point adjustment function

An adjustment method and workstation technology, applied in the field of chromatography, can solve problems such as inaccurate identification of end points, and achieve accurate, fast and definite results

Active Publication Date: 2017-10-24
达耐科学有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to: solve the technical problem of inaccurate identification of the end point of the spectral peak by only using the method of slope threshold judgment in the prior art to identify the starting point and end point of the spectral peak, and provide a method for adjusting the end point of the spectral peak

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  • Spectrum peak end point adjustment method and chromatographic workstation with spectrum peak end point adjustment function
  • Spectrum peak end point adjustment method and chromatographic workstation with spectrum peak end point adjustment function
  • Spectrum peak end point adjustment method and chromatographic workstation with spectrum peak end point adjustment function

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Embodiment Construction

[0038] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] refer to Figure 4 , shows a method flowchart of an embodiment of a method for adjusting the end point of a spectral peak in the present invention, including the following steps:

[0040] Step S401, determining the middle point of the spectrum peak;

[0041] In this step, firstly, the middle point of the spectral peak is found by using the slope threshold judgment method in the prior art. In this embodiment, the middle point of the spectrum peak is selected as the apex of the spectrum peak.

[0042] As another example, the middle point of the spectral peak may also be the right inflection point of the spectral peak or any point between the apex of the spectral peak and the right inflection point of the spectral peak as the middle point.

[0043] As another example, the determination of the middle point of the s...

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Abstract

The invention discloses a spectrum peak end point adjustment method and a chromatographic workstation with a spectrum peak end point adjustment function. The spectrum peak end point adjustment method includes the steps of: determining the middle point of the spectrum peak; sequentially judging the data points in the data group after the spectrum peak middle point Whether the sign of the slope value is changed, if there is a sign change, the last data point before the sign change or the first data point after the sign change is used as the end point of the spectrum peak; if there is no sign change, find the absolute value of the average slope of the data points in the group The first data group is less than the predetermined slope threshold, and any data point in the group is used as the first data point; find the second data group whose average slope absolute value of the data points in the group after the first data group is greater than the predetermined slope threshold , and take any data point in the group as the second data point; find all the data points whose absolute value of the slope between the first data point and the second data point is less than the predetermined slope threshold, and determine the lowest data point as the spectrum peak end point. The invention can quickly and accurately determine the end point of the spectrum peak.

Description

technical field [0001] The invention relates to the technical field of chromatography, in particular to a method for adjusting the end point of a spectrum peak and a chromatography workstation with the function of adjusting the end point of a spectrum peak. Background technique [0002] At present, all chromatographic devices in the industry are equipped with chromatographic workstations. The chromatographic workstation is equivalent to a host computer. On the one hand, it completes the control of the lower computer (that is, the chromatographic device), and on the other hand, it analyzes and processes the chromatographic data collected by the lower computer to achieve Quantitative analysis of the sample to be tested. Chromatographic devices include liquid chromatography, high performance liquid chromatography and ultra-high performance liquid chromatography. [0003] The quantitative analysis of the sample to be tested mainly depends on the peak area or peak height of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/86G01N35/00
Inventor 王灿王悦王铁军李维森
Owner 达耐科学有限公司
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