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Gas chromatography/mass spectrometry analysis apparatus of various compositions of white spirit, and analysis method thereof

A technology of gas chromatography analysis and mass spectrometry, applied in the field of wine analysis and detection

Active Publication Date: 2016-02-10
北京北分天普仪器技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing company's technology related to liquor chromatographic analysis of the present invention is: national standard GB / T10345-20070, but it has not yet been reported that gas chromatography / mass spectrometry is used to carry out qualitative and quantitative analysis of samples, and then the method for calculating the composition of liquor is reported

Method used

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  • Gas chromatography/mass spectrometry analysis apparatus of various compositions of white spirit, and analysis method thereof
  • Gas chromatography/mass spectrometry analysis apparatus of various compositions of white spirit, and analysis method thereof
  • Gas chromatography/mass spectrometry analysis apparatus of various compositions of white spirit, and analysis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] There are five types of Moutai samples, labeled M1, M2, M3, M4, and M5.

[0039] The structure of the test device is as figure 1 . The device includes a split sampler, a first capillary column ( figure 1 abbreviated as column 1), the second capillary column ( figure 1 abbreviated as column 2), hydrogen flame ionization detector, quadrupole mass spectrometer, controllable program temperature rise column oven;

[0040] The split sampler is connected in parallel with the first capillary column and the second capillary column (see image 3 ), the sample enters from the sample inlet 4, enters the chromatographic FID detector and the mass spectrometer ion source respectively by the first capillary column 7 and the second capillary column 1; the split injector is also provided with a carrier gas inlet 5 and a split outlet 6, the second Both a capillary column and a second capillary column are placed in the controllable program temperature riser oven;

[0041] The first ca...

Embodiment 2

[0058] The three types of Shuijingfang liquor are marked as S15, S16, and S17. The testing device and testing method are the same as in Example 1. (Unit: mg / l)

[0059] Table 3 Names and contents of various components of three kinds of Shuijingfang

[0060]

[0061]

[0062] Table 4 The content and content of various components in three kinds of Shuijingfang

[0063]

[0064] The samples in this embodiment have been tested five times, and the deviation is within 3%.

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Abstract

The invention provides a gas chromatography / mass spectrometry analysis apparatus of various compositions of white spirit. The apparatus comprises a gas chromatograph main machine provided with a split sample injector, a first capillary pillar, a second capillary pillar, a hydrogen flame ionization detector, a quadrupole mass spectrometer and a controllable temperature programming column box. The split sample injector is connected with the first capillary pillar and the second capillary pillar in parallel, and the first capillary pillar is sequentially connected with the hydrogen flame ionization detector; and the second capillary pillar is connected with the quadrupole mass spectrometer through an interface. The invention also provides a gas chromatography / mass spectrometry analysis method of various compositions of white spirit. The method adopts a same-machine, double-pillar and double-detector method, and a gas chromatographic peak quantitative result and a mass spectrometer qualitative result are simultaneously obtained through one-time sample injection. The peak identification reliability is greatly better than traditional gas chromatographic mixed standard characterization, and unique components of different types of white spirit can be identified in the invention. Fusel, ester, acid and aldehyde addition information can be obtained through adopting an addition method of a same kind of compounds, so different white spirits can be conveniently compared and discriminated.

Description

technical field [0001] The invention relates to the field of analysis and detection of liquor, in particular to an analysis method for various components of liquor. Background technique [0002] Gas chromatography utilizes the difference in the distribution coefficient of each component of the mixture between the two phases in the capillary column, and the components are distributed between the two phases for multiple times under the push of the carrier gas, so that the components are separated. Chromatographic measurement devices do not include detectors. If quantitative measurement is required, different internal standards should be used for different components, and samples with complex components need to be measured multiple times. Chromatography / mass spectrometry (GC / MS) is a method in which gas chromatography is used to separate mixtures and mass spectrometry is used to identify components. The high-resolution gas chromatography method is as mentioned above. The conn...

Claims

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Application Information

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IPC IPC(8): G01N30/88G01N27/64
Inventor 武杰
Owner 北京北分天普仪器技术有限公司
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