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Infrared testing method for attenuated total reflection

A technology of attenuated total reflection and infrared testing, which is applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems that the total reflection crystal cannot be guaranteed to be in close contact with the sample, and the test is inaccurate, so as to avoid the damage caused by the test results. effect of influence

Active Publication Date: 2016-04-27
GUANGDONG SHENGYI SCI TECH
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Problems solved by technology

[0007] However, the above scheme has some disadvantages
During the test, the sample and the total reflection crystal need to be in close contact to ensure that the incident infrared rays can pass through the interface between the total reflection crystal and the sample, enter the sample at a depth of several microns, and finally reflect back to the crystal. In order to ensure that the total reflection crystal The close contact with the sample requires a certain pressure on the sample. When the applied pressure exceeds the extruded powder sample, it will be crushed, resulting in inaccurate testing. When the pressure is insufficient, it is impossible to guarantee the contact between the total reflection crystal and the sample. close contact between

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  • Infrared testing method for attenuated total reflection
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[0040] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0041] Such as Figure 1~6 As shown, an attenuated total reflection infrared test method is introduced. This method is mainly used to measure liquid samples or powder samples, but it can also be used to measure samples with fixed shapes.

[0042] In this embodiment, the liquid sample or the powder sample is shaped and pressed on the sample bearing plane, and the attenuated total reflection infrared test is performed on the shaped and pressed state.

[0043] For liquid samples, shaping and pressurizing them on the sample bearing plane can avoid the uncontrollable height of the liquid sample caused by the liquid spreading around during the pressurization process, and at the same time reduce the contact area between the volatile liquid and the air, and reduce the The liquid evaporates.

[0044] For t...

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Abstract

The invention discloses an infrared testing method for attenuated total reflection. The infrared testing method for attenuated total reflection is used for testing a liquid sample or powdery sample; the liquid sample or powdery sample is shaped and pressurized on a sample bearing plane; and infrared attenuated total reflection testing is carried out on the liquid sample or powdery sample in the shaped and pressurized state. The infrared testing method for attenuated total reflection disclosed by the invention shapes and pressurizes the liquid sample or powdery sample on the sample bearing plane and carries out infrared attenuated total reflection testing on the liquid sample or powdery sample in the shaped and pressurized state, so form changes of the sample are prevented from influencing testing results.

Description

technical field [0001] The invention relates to the technical field of attenuated total reflection infrared testing, in particular to an attenuated total reflection infrared testing method. Background technique [0002] The principle of attenuated total reflection infrared spectroscopy test: ATR spectroscopy is a widely used technique in infrared spectroscopy testing technology, and it has become an infrared sample testing method often used by Fourier transform infrared spectroscopy analysis and testing workers. [0003] The attenuated total reflection attachment is referred to as the ATR attachment. The ATR accessories offered by today's infrared accessory manufacturers fall into four categories: horizontal ATR accessories, variable angle ATRs, circular pool ATRs, and single-bounce ATRs. The first three categories belong to multiple internal reflection ATR, and the last category belongs to single internal reflection ATR. All four types of ATR attachments work in the same ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/552
CPCG01N21/552
Inventor 王小兵
Owner GUANGDONG SHENGYI SCI TECH
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