A multi-crystal integrated infrared spectrum attenuated total reflection accessory

Abstract

The invention discloses a multi-crystal integrated attenuated total reflection accessory of an infrared spectroscopy. The attenuated total reflection accessory includes an accessory chamber body and a sample fixing pressing head. The accessory chamber body is hollow, the top surface of the accessory chamber body is parallel to the bottom surface of the accessory chamber body, the side surface of the accessory chamber body is provided with a light channel parallel to the bottom surface of the accessory chamber body, and the top surface of the accessory chamber body is provided with a light transmission hole penetrating through the top surface of the accessory chamber body; the light channel arranged under the light transmission hole is provided with a first infrared reflective mirror and a second infrared reflective mirror, the sample fixing pressing head is arranged above the light transmission hole, and a sample table is arranged between the sample fixing pressing head and the light transmission hole; the sample table is arranged on the top surface of the accessory chamber body through a rotatable pedestal, and the periphery of the sample table is uniformly provided with crystals. When various crystal models are required to test an analyzed sample, sample analysis can be carried out with quick switch of the crystals but without dismounting of the sample table. The multi-crystal integrated attenuated total reflection accessory of the infrared spectroscopy improves the analysis efficiency, and simultaneously avoids the problems of malfunctions of the sample table and the reduction of stability which are caused by frequently dismounting.

Description

technical field [0001] The invention relates to an infrared spectrum attenuation total reflection attachment, more specifically a multi-crystal integrated, fast switching and flexible application infrared spectrum attenuation total reflection attachment. Background technique [0002] As a widely used analytical instrument, infrared spectrometer has a large number of measurement accessories for various extended applications. Among them, the attenuated total reflection accessory (hereinafter referred to as the ATR accessory) is for sample surface testing, for samples that are inconvenient to use conventional methods or cannot obtain satisfactory spectral information, such as elastomers, films and other samples. When the ATR accessory is used, it is put into the main optical path of the sample compartment of the infrared spectrometer as a whole, and the infrared light is guided to the sample stage integrated with the special crystal by the infrared mirror, and the sample is in ...

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Problems solved by technology

[0004] Aiming at the problems of the above-mentioned prior art mid-infrared spectrum attenuation total reflection accessories that need to be frequently disassembled during use, the operation is cumbersome and may cause instrument failure, etc., the present invention provides an all-round infrared spectrum attenuation with multi-crystal integrated structure and fast switching Total Reflection Attachment

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