Data correction test method for preventing detection result from drifting and presenting decline rule

A technology for data correction and detection results, which is applied in the field of geological survey data processing, and can completely solve difficult problems

Active Publication Date: 2021-07-06
XIAN CENT OF GEOLOGICAL SURVEY CGS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After communicating with the instrument engineer, this defect is an inherent problem of the detector, and it is difficult to completely solve it

Method used

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  • Data correction test method for preventing detection result from drifting and presenting decline rule
  • Data correction test method for preventing detection result from drifting and presenting decline rule
  • Data correction test method for preventing detection result from drifting and presenting decline rule

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Embodiment

[0062] The present invention adopts following technical scheme:

[0063] ①After the start-up baseline is stable, use the same certified reference material for long-term uninterrupted measurement;

[0064] The present invention mixes the Shimadzu organic carbon analyzer reference material with blank water under a protective gas atmosphere to obtain a uniformly mixed Shimadzu organic carbon analyzer reference sample; the uniformly mixed Shimadzu organic carbon analyzer reference sample passes through a distribution pipe The road flows to the first analyzer for calibration and the second analyzer to be calibrated respectively; and the first and second analyzers respectively measure the organic carbon in the reference sample, and compare the respective measurement results;

[0065] ② Take the detection time as the abscissa, take the ratio of the actual measured value and the reference value of the standard substance as the ordinate, and use Excel to fit the curve equation;

[006...

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Abstract

The invention belongs to the technical field of geological survey data processing, and discloses a data correction test method for preventing a detection result from drifting and presenting a decline rule. The method comprises the following steps of judging whether the operation time of a Shimadzu organic carbon analyzer is greater than a preset threshold value for 15 hours or not; accurately inputting blank water and an organic carbon solution with known concentration into a graduated mixing bottle through a infusion pump and uniformly stirring through a stirrer, and comparing data measured by the high-accuracy pure water organic carbon analyzer with a result of organic carbon of the solution in the mixing bottle obtained through dilution so that the pure water organic carbon analyzer to be detected can be calibrated; and correcting the detection data of the Shimadzu organic carbon analyzer by adopting different correction formulas based on a judgment result. According to the result calibration method established by the invention, the signal attenuation of the detector is counteracted in the aspect of data processing, the accuracy of the detection result is greatly improved, long-time and continuous sample detection of an instrument is realized, especially continuous detection of a large batch of samples is realized, and the working efficiency and the stability are improved.

Description

technical field [0001] The invention belongs to the technical field of geological survey data processing, and in particular relates to a data correction test method that prevents drift of test results and presents a law of decline. Background technique [0002] At present, when the existing instrument (Shimadzu TOC-L+SSM5000) analyzes solid samples, the main working principle is as follows: [0003] Using the high-temperature catalytic combustion method, inject the weighed sample into the TC combustion tube filled with oxidation catalyst, and heat it to 900°C. The TC in the sample is burned and decomposed into carbon dioxide, and the combustion product is introduced into the non-infrared gas analysis through the carrier gas. In the NDR pool, carbon dioxide is detected. The detected peak area of ​​NDIR is calculated in the data processing part. Since the peak area is proportional to the TC concentration in the sample, the relational expression between the TC concentration a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504
CPCG01N21/3504G01N2201/121G01N2201/12746
Inventor 赵江华李忠煜张明祖王鹏韩延兵
Owner XIAN CENT OF GEOLOGICAL SURVEY CGS
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