Chromatographic peak end point adjusting method and chromatographic work station having chromatographic peak end point adjusting function

Abstract

The present invention discloses a chromatographic peak end point adjusting method and a chromatographic work station having the chromatographic peak end point adjusting function. The chromatographic peak end point adjusting method comprises: determining a chromatographic peak middle point; sequentially judging whether the slope value of the data point in the data group and behind the chromatographic peak middle point is subjected to symbol change, and adopting the last data point before the symbol change or the first data point after the symbol change as the chromatographic peak end point if the symbol change exists; if the symbol change does not exist, searching a first data group having the data point average slope absolute value of less than the preset slope threshold, and adopting any one data point in the group as a first data point; searching a second data group having the data point average slope absolute value of more than the preset slope threshold and positioned behind the first data group, and adopting any one data point in the group as a second data point; and searching all data points having the slope absolute value of less than the preset slope threshold and positioned between the first data point and the second data point, and determining the lowest data point as the chromatographic peak end point. According to the present invention, the chromatographic peak end point can be quickly and accurately determined.

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 ...

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

Images