Test method, test device and test equipment for performing sample analysis

Abstract

The invention discloses a test method, a test apparatus and test equipment for sample analysis, belonging to the field of petrochemical industry. The test method comprises the following steps: acquiring a GC-FID spectrogram and a GC-MS spectrogram of a to-be-tested sample, wherein the GC-FID spectrogram comprises retention time of various chromatographic peaks on the GC-FID spectrogram, and the GC-MS spectrogram comprises retention time of various chromatographic peaks on the GC-MS spectrogram; in accordance with the retention time of the various chromatographic peaks of the to-be-tested sample on the GC-MS spectrogram, calculating predicted retention time of the various chromatographic peaks of the to-be-tested sample on the GC-FID spectrogram in combination with a preset formula; in accordance with the predicted retention time of the various chromatographic peaks of the to-be-tested sample on the GC-FID spectrogram, determining corresponding relations of the various chromatographic peaks on the GC-FID spectrogram and on the GC-MS spectrogram; recording peak areas of the chromatographic peaks with determined corresponding relations on the GC-FID spectrogram; and calculating actual contents of various components in accordance with peak areas corresponding to the various components. According to the test method disclosed by the invention, a test result on the sample is acquired by combining qualitative and quantitative data.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a test method, test device and test equipment for sample analysis. Background technique [0002] In the petroleum industry, when analyzing complex samples such as petroleum hydrocarbons, it is often necessary to test the qualitative data of gas chromatography mass spectrometry and the quantitative data of gas chromatography. [0003] GC (Gas Chromatography, Gas Chromatography) is a device that uses a capillary chromatographic column to separate components in a sample. When performing data testing, the components are usually separated by the GC, and then the components are qualitatively and quantitatively determined by the detector. Below, the different types of detectors and their qualitative and quantitative performance are described: [0004] MS (Mass Spectrometry, mass spectrometry detector) uses high-energy electron beams to impact component molecules in a vacuum chamb...

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Problems solved by technology

[0007] In the process of realizing the present invention, the inventors have found that the prior art has at least the following problems: first, the outlet pressures of the two detectors are different, resulting in inconsistent retention times of components in GC-MS and GC-FID

Secondly, due to the different detection principles of GC-MS and GC-FID, the peak shapes of the spectrograms produced by the same component on the two detectors are different, and it is difficult to correspond to the components on different detectors according to the peak shape

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